-
GCSE Biology - Variation and Evolution #68
Explore all the terms around evolution, including 'natural selection', 'variation', and 'survival of the fittest'. And see how Darwins came up with the theory of evolution despite not even knowing what DNA or mutation were.
published: 10 Jan 2019
-
GCSE Science Revision Biology "Variation"
Workbooks for schools from 50p per copy. Visit freesciencelessons.co.uk/school-licences/
This video is based on the AQA spec. If you are following a different exam board then you should check your specification.
In this video, we look at the causes of variation in a population. We then look at an example where a mutation caused a rapid change in the phenotype of a population.
Image credits:
Bill Russell "https://commons.wikimedia.org/wiki/File%3ABill_Russell_in_the_Green_Room.jpg
Pete Souza [Public domain], via Wikimedia Commons"
Portrait_of_a_Persian_lady_in_Iran,_10-08-2006 By Hamed Saber from Tehran, Iran - Persian Beauty, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=3885047
Red haired siblings "https://commons.wikimedia.org/wiki/File%3ARed-haired_Siblings.jpg
By ...
published: 02 Apr 2018
-
Variation | Genetics | Biology | FuseSchool
Variation | Genetics | Biology | FuseSchool
Look at these baby animals. You will have immediately observed how cute and fluffy they are but you will
also have noticed that they are different - they vary. Yes - some are puppies and some are kittens.
There is a great deal of variation between species but also there is variation within a species. One
puppy is fluffier than the other, they have different colour fur and the kittens have different coloured eyes.
Variation is the differences in the characteristics of individuals in a population. It can be due to genetics,
the environment or a combination of both.
Let’s start with genetics. Different members of a population have different DNA, unless they are identical
twins. This means they have different versions of genes, called alleles, and ...
published: 07 May 2019
-
Big Zuu, D Double E - Variation (Official Video)
Video Directed and Produced - Kelvin Jones
Stream on Spotify/Apple - https://ffm.to/bigzuu-ddoublee-variation
Produced by - Sir Spyro & Joker
Mixed/Mastered - Joker
http://vevo.ly/LBxxxF
published: 26 Mar 2021
-
Variation
This video is about variation and is for Key Stage Three pupils (pupils in Years 7 & 8). This video covers the difference between inherited and environmental variation.
published: 28 Sep 2020
-
Continuous and Discontinuous Variation | A-level Biology | OCR, AQA, Edexcel
Continuous and Discontinuous Variation in a Snap! Unlock the full A-level Biology course at http://bit.ly/2HAwcXB created by Adam Tildesley, Biology expert at SnapRevise and graduate of Cambridge University.
SnapRevise is the UK’s leading A-level and GCSE revision & exam preparation resource offering comprehensive video courses created by A* Oxbridge tutors. Our courses are designed around the OCR, AQA, SNAB, Edexcel B, WJEC, CIE and IAL exam boards, concisely covering all the important concepts required by each specification. In addition to all the content videos, our courses include hundreds of exam question videos, where we show you how to tackle questions and walk you through step by step how to score full marks.
Sign up today and together, let’s make A-level Biology a walk in the pa...
published: 23 Aug 2019
-
Evgenia Obraztsova - Cupid Variation (2006)
Evgenia Obraztsova as Cupid in Don Quixote. Vienna, 2006.
published: 26 Oct 2012
-
What is Variation?
published: 23 Sep 2015
-
Table of Silence Project Meditation Variation 12 Gestures in repetitions of 10 Aug 6th, 10:30am EDT
NEXT MEDITATION VARIATION_SUNDAY, August 6th, 10:30 AM EDT
Buglisi Dance Theatre
Jacqulyn Buglisi Artistic Director/Choreographer
© Table of Silence Project Meditation Variation in Twelve Gestures
Sunday, August 6, 10:30AM (EDT)
Buglisi Dance Theatre thanks Editors Haejin Han & So Young An
Buglisi Dance Theatre and the world community of Table of Silence Project dance artists invite you to a Call to Action during these unprecedented times. Participate with us in a virtual worldwide meditation variation with breath and the repetition of the twelve gestures of the Table of Silence Project. Together, we create a powerful movement mantra connecting humanity and manifesting a universal vibration of healing for global unity and peace.
Join us in a Live Chat following the meditation.
*Gest...
published: 06 Aug 2023
-
Giselle - Act I Variation (Yasmine Naghdi, The Royal Ballet)
Yasmine Naghdi, as Giselle, performs the Act I Variation in The Royal Ballet's production of Giselle.
Giselle is available to watch now – along with over 60 other extraordinary productions – on Royal Opera House Stream. Watch the whole performance now at https://www.roh.org.uk/tickets-and-events/giselle-2021-digital
Giselle is the classic ballet of the Romantic era – and, for the dancer performing the title role, one of the greatest challenges in the repertory. Peter Wright’s production, a classic itself, perfectly achieves the dual aspects of the ballet, moving from the naivety of young love between Giselle and Albrecht in the village setting of Act I to the ethereal Wilis in Act II’s eerie moonlit forest. Rich in vivid character detail and poignant depth of feeling, Giselle is a remin...
published: 29 Dec 2021
5:28
GCSE Biology - Variation and Evolution #68
Explore all the terms around evolution, including 'natural selection', 'variation', and 'survival of the fittest'. And see how Darwins came up with the theory o...
Explore all the terms around evolution, including 'natural selection', 'variation', and 'survival of the fittest'. And see how Darwins came up with the theory of evolution despite not even knowing what DNA or mutation were.
https://wn.com/Gcse_Biology_Variation_And_Evolution_68
Explore all the terms around evolution, including 'natural selection', 'variation', and 'survival of the fittest'. And see how Darwins came up with the theory of evolution despite not even knowing what DNA or mutation were.
- published: 10 Jan 2019
- views: 324977
3:02
GCSE Science Revision Biology "Variation"
Workbooks for schools from 50p per copy. Visit freesciencelessons.co.uk/school-licences/
This video is based on the AQA spec. If you are following a different ...
Workbooks for schools from 50p per copy. Visit freesciencelessons.co.uk/school-licences/
This video is based on the AQA spec. If you are following a different exam board then you should check your specification.
In this video, we look at the causes of variation in a population. We then look at an example where a mutation caused a rapid change in the phenotype of a population.
Image credits:
Bill Russell "https://commons.wikimedia.org/wiki/File%3ABill_Russell_in_the_Green_Room.jpg
Pete Souza [Public domain], via Wikimedia Commons"
Portrait_of_a_Persian_lady_in_Iran,_10-08-2006 By Hamed Saber from Tehran, Iran - Persian Beauty, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=3885047
Red haired siblings "https://commons.wikimedia.org/wiki/File%3ARed-haired_Siblings.jpg
By Dpulitzer (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons"
Lalit_Narayan_Jha "https://commons.wikimedia.org/wiki/File%3ALalit_Narayan_Jha.jpg
By PawanJha91 (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons"
1032px-FFヤロでの高橋一輝 "https://commons.wikimedia.org/wiki/File%3AFF%E3%83%A4%E3%83%AD%E3%81%A7%E3%81%AE%E9%AB%98%E6%A9%8B%E4%B8%80%E8%BC%9D.jpg
By 山崎秀太 (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons"
Young blonde man "https://commons.wikimedia.org/wiki/File%3AYoung_blond_man.jpg
By User:Pja25 (Cropped from Image:Two blond males.jpg) [Public domain], via Wikimedia Commons"
Pink hydrangea "https://commons.wikimedia.org/wiki/File%3AHydrangea_macrophylla_01.jpg
I, MJJR [CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons"
Blue hydrangea By Raul654, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=127207
Two cricketers By BeingFaridKhan - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=26247494
Eight dogs By carterse - Eight is still enough dogs, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=39528172
Rabbit By Ann Harrison, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=14186205
People talking "https://commons.wikimedia.org/wiki/File%3AAsma5.jpg
By Mghali76 (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons"
Music credit:
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/?keywords=deliberate+thought
Artist: http://incompetech.com/
https://wn.com/Gcse_Science_Revision_Biology_Variation
Workbooks for schools from 50p per copy. Visit freesciencelessons.co.uk/school-licences/
This video is based on the AQA spec. If you are following a different exam board then you should check your specification.
In this video, we look at the causes of variation in a population. We then look at an example where a mutation caused a rapid change in the phenotype of a population.
Image credits:
Bill Russell "https://commons.wikimedia.org/wiki/File%3ABill_Russell_in_the_Green_Room.jpg
Pete Souza [Public domain], via Wikimedia Commons"
Portrait_of_a_Persian_lady_in_Iran,_10-08-2006 By Hamed Saber from Tehran, Iran - Persian Beauty, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=3885047
Red haired siblings "https://commons.wikimedia.org/wiki/File%3ARed-haired_Siblings.jpg
By Dpulitzer (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons"
Lalit_Narayan_Jha "https://commons.wikimedia.org/wiki/File%3ALalit_Narayan_Jha.jpg
By PawanJha91 (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons"
1032px-FFヤロでの高橋一輝 "https://commons.wikimedia.org/wiki/File%3AFF%E3%83%A4%E3%83%AD%E3%81%A7%E3%81%AE%E9%AB%98%E6%A9%8B%E4%B8%80%E8%BC%9D.jpg
By 山崎秀太 (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons"
Young blonde man "https://commons.wikimedia.org/wiki/File%3AYoung_blond_man.jpg
By User:Pja25 (Cropped from Image:Two blond males.jpg) [Public domain], via Wikimedia Commons"
Pink hydrangea "https://commons.wikimedia.org/wiki/File%3AHydrangea_macrophylla_01.jpg
I, MJJR [CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons"
Blue hydrangea By Raul654, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=127207
Two cricketers By BeingFaridKhan - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=26247494
Eight dogs By carterse - Eight is still enough dogs, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=39528172
Rabbit By Ann Harrison, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=14186205
People talking "https://commons.wikimedia.org/wiki/File%3AAsma5.jpg
By Mghali76 (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons"
Music credit:
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/?keywords=deliberate+thought
Artist: http://incompetech.com/
- published: 02 Apr 2018
- views: 335536
3:41
Variation | Genetics | Biology | FuseSchool
Variation | Genetics | Biology | FuseSchool
Look at these baby animals. You will have immediately observed how cute and fluffy they are but you will
also have...
Variation | Genetics | Biology | FuseSchool
Look at these baby animals. You will have immediately observed how cute and fluffy they are but you will
also have noticed that they are different - they vary. Yes - some are puppies and some are kittens.
There is a great deal of variation between species but also there is variation within a species. One
puppy is fluffier than the other, they have different colour fur and the kittens have different coloured eyes.
Variation is the differences in the characteristics of individuals in a population. It can be due to genetics,
the environment or a combination of both.
Let’s start with genetics. Different members of a population have different DNA, unless they are identical
twins. This means they have different versions of genes, called alleles, and these alleles give rise to
different characteristics.
For example, on the eye colour gene this kitten has an allele for blue eye colour whereas this kitten has
an allele for brown eye colour.
If the species reproduces by sexual reproduction, the random mixing of alleles from both parents results
in extensive genetic variation within a population of a species. This means that some individuals are
better adapted to their environment than others, allowing natural selection to take place. For example, in
a population of rats, some will have better eyesight than others. These will be able to avoid being eaten
by predators so are more likely to survive to reproduce and pass on this advantage to their offspring. If
you want to learn more about natural selection, watch this video.
https://www.youtube.com/watch?v=j-COGCN3U9I
Some examples of variation in humans that are controlled only by genes include eye colour and blood
group. If you have blood group A it is because you have the alleles for this characteristic. This is genetic
variation, and it is something that you were born with, and nothing can change it.
Some variation is due to the environment, or lifestyle of the organisms. Examples in humans are hair
length (it depends on how short you decide to cut it), your accent, as this is linked to where you live and
if you have any piercings, tattoos or scars. These are characteristics that you acquire throughout your
life.
Many characteristics are due to a combination of both genetics and the environment. For example, the
height a person can grow to is determined by genetics - tall parents tend to produce tall children.
However, a person will not grow to their potential height unless they eat a healthy, balanced diet. Also,
there is some debate on how much intelligence is due to genetics or the quality of education a person
receives - is intelligence more due to nature or nurture?
To answer these questions scientists can do experiments using identical twins. If the characteristic in
both twins is the same then it is most likely due to genetics. If it is different, then the environment has
played an important role. For example, identical twins will have the same eye colour as this is only due to
genetics but they will have different personalities, talents, likes and dislikes and this shows that these are
also influenced by the environment.
So, in this video we learnt about variation, and how it can be controlled by genetics, the environment or
sometimes both.
CREDITS
Animation & Design: Waldi Apollis
Narration: Dale Bennett
Script: Lucy Billings
SUPPORT US ON PATREON
https://www.patreon.com/fuseschool
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV
Find all of our Biology videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0
Find all of our Physics videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTWm6Sr5uN2Uv5TXHiZUq8b
Find all of our Maths videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTKBNbHH5u1SNnsrOaacKLu
Instagram: https://www.instagram.com/fuseschool/
Facebook: https://www.facebook.com/fuseschool/
Twitter: https://twitter.com/fuseSchool
Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: http://www.youtube.com/fuseschool
Befriend us: http://www.facebook.com/fuseschool
This is an Open Educational Resource. If you would like to use the video, please contact us:
[email protected]
https://wn.com/Variation_|_Genetics_|_Biology_|_Fuseschool
Variation | Genetics | Biology | FuseSchool
Look at these baby animals. You will have immediately observed how cute and fluffy they are but you will
also have noticed that they are different - they vary. Yes - some are puppies and some are kittens.
There is a great deal of variation between species but also there is variation within a species. One
puppy is fluffier than the other, they have different colour fur and the kittens have different coloured eyes.
Variation is the differences in the characteristics of individuals in a population. It can be due to genetics,
the environment or a combination of both.
Let’s start with genetics. Different members of a population have different DNA, unless they are identical
twins. This means they have different versions of genes, called alleles, and these alleles give rise to
different characteristics.
For example, on the eye colour gene this kitten has an allele for blue eye colour whereas this kitten has
an allele for brown eye colour.
If the species reproduces by sexual reproduction, the random mixing of alleles from both parents results
in extensive genetic variation within a population of a species. This means that some individuals are
better adapted to their environment than others, allowing natural selection to take place. For example, in
a population of rats, some will have better eyesight than others. These will be able to avoid being eaten
by predators so are more likely to survive to reproduce and pass on this advantage to their offspring. If
you want to learn more about natural selection, watch this video.
https://www.youtube.com/watch?v=j-COGCN3U9I
Some examples of variation in humans that are controlled only by genes include eye colour and blood
group. If you have blood group A it is because you have the alleles for this characteristic. This is genetic
variation, and it is something that you were born with, and nothing can change it.
Some variation is due to the environment, or lifestyle of the organisms. Examples in humans are hair
length (it depends on how short you decide to cut it), your accent, as this is linked to where you live and
if you have any piercings, tattoos or scars. These are characteristics that you acquire throughout your
life.
Many characteristics are due to a combination of both genetics and the environment. For example, the
height a person can grow to is determined by genetics - tall parents tend to produce tall children.
However, a person will not grow to their potential height unless they eat a healthy, balanced diet. Also,
there is some debate on how much intelligence is due to genetics or the quality of education a person
receives - is intelligence more due to nature or nurture?
To answer these questions scientists can do experiments using identical twins. If the characteristic in
both twins is the same then it is most likely due to genetics. If it is different, then the environment has
played an important role. For example, identical twins will have the same eye colour as this is only due to
genetics but they will have different personalities, talents, likes and dislikes and this shows that these are
also influenced by the environment.
So, in this video we learnt about variation, and how it can be controlled by genetics, the environment or
sometimes both.
CREDITS
Animation & Design: Waldi Apollis
Narration: Dale Bennett
Script: Lucy Billings
SUPPORT US ON PATREON
https://www.patreon.com/fuseschool
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV
Find all of our Biology videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0
Find all of our Physics videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTWm6Sr5uN2Uv5TXHiZUq8b
Find all of our Maths videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTKBNbHH5u1SNnsrOaacKLu
Instagram: https://www.instagram.com/fuseschool/
Facebook: https://www.facebook.com/fuseschool/
Twitter: https://twitter.com/fuseSchool
Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: http://www.youtube.com/fuseschool
Befriend us: http://www.facebook.com/fuseschool
This is an Open Educational Resource. If you would like to use the video, please contact us:
[email protected]
- published: 07 May 2019
- views: 529219
3:29
Big Zuu, D Double E - Variation (Official Video)
Video Directed and Produced - Kelvin Jones
Stream on Spotify/Apple - https://ffm.to/bigzuu-ddoublee-variation
Produced by - Sir Spyro & Joker
Mixed/Mastered - J...
Video Directed and Produced - Kelvin Jones
Stream on Spotify/Apple - https://ffm.to/bigzuu-ddoublee-variation
Produced by - Sir Spyro & Joker
Mixed/Mastered - Joker
http://vevo.ly/LBxxxF
https://wn.com/Big_Zuu,_D_Double_E_Variation_(Official_Video)
Video Directed and Produced - Kelvin Jones
Stream on Spotify/Apple - https://ffm.to/bigzuu-ddoublee-variation
Produced by - Sir Spyro & Joker
Mixed/Mastered - Joker
http://vevo.ly/LBxxxF
- published: 26 Mar 2021
- views: 414192
3:45
Variation
This video is about variation and is for Key Stage Three pupils (pupils in Years 7 & 8). This video covers the difference between inherited and environmental va...
This video is about variation and is for Key Stage Three pupils (pupils in Years 7 & 8). This video covers the difference between inherited and environmental variation.
https://wn.com/Variation
This video is about variation and is for Key Stage Three pupils (pupils in Years 7 & 8). This video covers the difference between inherited and environmental variation.
- published: 28 Sep 2020
- views: 16051
8:13
Continuous and Discontinuous Variation | A-level Biology | OCR, AQA, Edexcel
Continuous and Discontinuous Variation in a Snap! Unlock the full A-level Biology course at http://bit.ly/2HAwcXB created by Adam Tildesley, Biology expert at S...
Continuous and Discontinuous Variation in a Snap! Unlock the full A-level Biology course at http://bit.ly/2HAwcXB created by Adam Tildesley, Biology expert at SnapRevise and graduate of Cambridge University.
SnapRevise is the UK’s leading A-level and GCSE revision & exam preparation resource offering comprehensive video courses created by A* Oxbridge tutors. Our courses are designed around the OCR, AQA, SNAB, Edexcel B, WJEC, CIE and IAL exam boards, concisely covering all the important concepts required by each specification. In addition to all the content videos, our courses include hundreds of exam question videos, where we show you how to tackle questions and walk you through step by step how to score full marks.
Sign up today and together, let’s make A-level Biology a walk in the park!
The key points covered in this video include:
1. Sources of Variation
2. Variation between Individuals
3. Continuous and Discontinuous Variation
Sources of Variation
In a population there is variation between individuals because all organisms are unique. Even identical twins develop differently and end up having slight differences in appearance and their DNA. There are many ways that organisms can differ from one another because there are many possible sources of variation. Variation between individuals can be due to their genetics or their environment. An individual’s genetics and environment can both influence a particular trait - this is called a combined effect or an interaction.
Variation Between Individuals
Individuals from different species tend to show a large amount of interspecific variation. Interspecific variation is the differences between any two species. Individuals of the same species also differ, and they are said to show intraspecific variation. A population with greater genetic diversity will show greater intraspecific variation.
Continuous and Discontinuous Variation
When looking at a particular characteristic/trait there are two types of variation: Some traits show continuous variation. Continuous variation is when there are two extremes and a full range of values in between. Most individuals are close to the mean value with fewer at the both extremes. Traits that show continuous variation are often regulated by multiple genes and influenced by the environment. Some traits show discontinuous variation. Discontinuous variation is where there are distinct categories with no intermediate values. Individuals tend to be distributed evenly between the different categories.Traits that show discontinuous variation are often regulated by a single gene and aren’t under environmental influence.
Summary
Variation to some degree exists between all organisms
Variation can be caused by a variety of genetic and environmental factors
Variation between individuals of the same species is known as intraspecific variation
Variation between individuals of different species is called insterspecific variation
Variation is continuous if there are a range of possible values for a trait between two extremes
Variation is discontinuous if a trait has discreet categories with no intermediates
https://wn.com/Continuous_And_Discontinuous_Variation_|_A_Level_Biology_|_Ocr,_Aqa,_Edexcel
Continuous and Discontinuous Variation in a Snap! Unlock the full A-level Biology course at http://bit.ly/2HAwcXB created by Adam Tildesley, Biology expert at SnapRevise and graduate of Cambridge University.
SnapRevise is the UK’s leading A-level and GCSE revision & exam preparation resource offering comprehensive video courses created by A* Oxbridge tutors. Our courses are designed around the OCR, AQA, SNAB, Edexcel B, WJEC, CIE and IAL exam boards, concisely covering all the important concepts required by each specification. In addition to all the content videos, our courses include hundreds of exam question videos, where we show you how to tackle questions and walk you through step by step how to score full marks.
Sign up today and together, let’s make A-level Biology a walk in the park!
The key points covered in this video include:
1. Sources of Variation
2. Variation between Individuals
3. Continuous and Discontinuous Variation
Sources of Variation
In a population there is variation between individuals because all organisms are unique. Even identical twins develop differently and end up having slight differences in appearance and their DNA. There are many ways that organisms can differ from one another because there are many possible sources of variation. Variation between individuals can be due to their genetics or their environment. An individual’s genetics and environment can both influence a particular trait - this is called a combined effect or an interaction.
Variation Between Individuals
Individuals from different species tend to show a large amount of interspecific variation. Interspecific variation is the differences between any two species. Individuals of the same species also differ, and they are said to show intraspecific variation. A population with greater genetic diversity will show greater intraspecific variation.
Continuous and Discontinuous Variation
When looking at a particular characteristic/trait there are two types of variation: Some traits show continuous variation. Continuous variation is when there are two extremes and a full range of values in between. Most individuals are close to the mean value with fewer at the both extremes. Traits that show continuous variation are often regulated by multiple genes and influenced by the environment. Some traits show discontinuous variation. Discontinuous variation is where there are distinct categories with no intermediate values. Individuals tend to be distributed evenly between the different categories.Traits that show discontinuous variation are often regulated by a single gene and aren’t under environmental influence.
Summary
Variation to some degree exists between all organisms
Variation can be caused by a variety of genetic and environmental factors
Variation between individuals of the same species is known as intraspecific variation
Variation between individuals of different species is called insterspecific variation
Variation is continuous if there are a range of possible values for a trait between two extremes
Variation is discontinuous if a trait has discreet categories with no intermediates
- published: 23 Aug 2019
- views: 89846
1:15
Evgenia Obraztsova - Cupid Variation (2006)
Evgenia Obraztsova as Cupid in Don Quixote. Vienna, 2006.
Evgenia Obraztsova as Cupid in Don Quixote. Vienna, 2006.
https://wn.com/Evgenia_Obraztsova_Cupid_Variation_(2006)
Evgenia Obraztsova as Cupid in Don Quixote. Vienna, 2006.
- published: 26 Oct 2012
- views: 4086155
25:14
Table of Silence Project Meditation Variation 12 Gestures in repetitions of 10 Aug 6th, 10:30am EDT
NEXT MEDITATION VARIATION_SUNDAY, August 6th, 10:30 AM EDT
Buglisi Dance Theatre
Jacqulyn Buglisi Artistic Director/Choreographer
© Table of Silence Project Me...
NEXT MEDITATION VARIATION_SUNDAY, August 6th, 10:30 AM EDT
Buglisi Dance Theatre
Jacqulyn Buglisi Artistic Director/Choreographer
© Table of Silence Project Meditation Variation in Twelve Gestures
Sunday, August 6, 10:30AM (EDT)
Buglisi Dance Theatre thanks Editors Haejin Han & So Young An
Buglisi Dance Theatre and the world community of Table of Silence Project dance artists invite you to a Call to Action during these unprecedented times. Participate with us in a virtual worldwide meditation variation with breath and the repetition of the twelve gestures of the Table of Silence Project. Together, we create a powerful movement mantra connecting humanity and manifesting a universal vibration of healing for global unity and peace.
Join us in a Live Chat following the meditation.
*Gestures*
1. Portrait | 2. Helen's Bell | 3. Reach, Shudder, Throw | 4. Heart Flutters | 5. Tuning Fork |
6. See no, Hear no, Speak no | 7. Hovering Bird, Heartstrings | 8. Earth, Sky, Prayer | 9. Double beat to the Wind | 10. Rain Walk, Spirit Warrior | 11. Sewing, Threading the Needle | 12. Biting the Apple
*Meditation Variation*
Row 1: Anne O’Donnell, Helen Hansen French, Charlotte Landreau, Stephanie van Dooren-Eshkenazi
Row2: So Young An, Terese Capucilli, Christine Dakin, Lloyd Knight
Row 3: Lindsay Jorgensen, Lauren Jaeger, Meagan King, Jessica Higgins
*If you wish, send us a video of yourself doing the Meditation Variation to
[email protected]
The meditation will be accessible for 48 hours for your reference.
The Table of Silence Project is a performance ritual for peace, unity and healing performed annually on the Josie Robertson Plaza at Lincoln Center since 2011. Our hope today is to bring you a source of comfort. Let us transcend our fear and sorrows as we face the oppression and tragedy of COVID-19.
Please help us continue our work in service to the community by making a contribution in any amount: https://buglisidance.org/donate Thank you!
https://www.buglisidance.org
https://www.tableofsilence.org
Table of Silence Project 9/11 Videos: Nel Shelby Productions
Photo Credits: Paul B. Goode, Terri Gold, Asterix, Oberon's Grove
• Youtube editing: Haejin Han
• 'Thank you’ film: Terese Capucilli
with
Manuela Fratar, Martina Zambarbieri, Pia Cattan, Maria Pia Tucci, Giulia Fabiani, Benedetta Valmadre, Concetta Colanero, Elena Albano, Alessandra Maistro, Kelly Cardosi, Caterina Grecolini, Stefania Coloru, Daniele Campi, Veronica Sala
https://wn.com/Table_Of_Silence_Project_Meditation_Variation_12_Gestures_In_Repetitions_Of_10_Aug_6Th,_10_30Am_Edt
NEXT MEDITATION VARIATION_SUNDAY, August 6th, 10:30 AM EDT
Buglisi Dance Theatre
Jacqulyn Buglisi Artistic Director/Choreographer
© Table of Silence Project Meditation Variation in Twelve Gestures
Sunday, August 6, 10:30AM (EDT)
Buglisi Dance Theatre thanks Editors Haejin Han & So Young An
Buglisi Dance Theatre and the world community of Table of Silence Project dance artists invite you to a Call to Action during these unprecedented times. Participate with us in a virtual worldwide meditation variation with breath and the repetition of the twelve gestures of the Table of Silence Project. Together, we create a powerful movement mantra connecting humanity and manifesting a universal vibration of healing for global unity and peace.
Join us in a Live Chat following the meditation.
*Gestures*
1. Portrait | 2. Helen's Bell | 3. Reach, Shudder, Throw | 4. Heart Flutters | 5. Tuning Fork |
6. See no, Hear no, Speak no | 7. Hovering Bird, Heartstrings | 8. Earth, Sky, Prayer | 9. Double beat to the Wind | 10. Rain Walk, Spirit Warrior | 11. Sewing, Threading the Needle | 12. Biting the Apple
*Meditation Variation*
Row 1: Anne O’Donnell, Helen Hansen French, Charlotte Landreau, Stephanie van Dooren-Eshkenazi
Row2: So Young An, Terese Capucilli, Christine Dakin, Lloyd Knight
Row 3: Lindsay Jorgensen, Lauren Jaeger, Meagan King, Jessica Higgins
*If you wish, send us a video of yourself doing the Meditation Variation to
[email protected]
The meditation will be accessible for 48 hours for your reference.
The Table of Silence Project is a performance ritual for peace, unity and healing performed annually on the Josie Robertson Plaza at Lincoln Center since 2011. Our hope today is to bring you a source of comfort. Let us transcend our fear and sorrows as we face the oppression and tragedy of COVID-19.
Please help us continue our work in service to the community by making a contribution in any amount: https://buglisidance.org/donate Thank you!
https://www.buglisidance.org
https://www.tableofsilence.org
Table of Silence Project 9/11 Videos: Nel Shelby Productions
Photo Credits: Paul B. Goode, Terri Gold, Asterix, Oberon's Grove
• Youtube editing: Haejin Han
• 'Thank you’ film: Terese Capucilli
with
Manuela Fratar, Martina Zambarbieri, Pia Cattan, Maria Pia Tucci, Giulia Fabiani, Benedetta Valmadre, Concetta Colanero, Elena Albano, Alessandra Maistro, Kelly Cardosi, Caterina Grecolini, Stefania Coloru, Daniele Campi, Veronica Sala
- published: 06 Aug 2023
- views: 124
1:40
Giselle - Act I Variation (Yasmine Naghdi, The Royal Ballet)
Yasmine Naghdi, as Giselle, performs the Act I Variation in The Royal Ballet's production of Giselle.
Giselle is available to watch now – along with over 60 o...
Yasmine Naghdi, as Giselle, performs the Act I Variation in The Royal Ballet's production of Giselle.
Giselle is available to watch now – along with over 60 other extraordinary productions – on Royal Opera House Stream. Watch the whole performance now at https://www.roh.org.uk/tickets-and-events/giselle-2021-digital
Giselle is the classic ballet of the Romantic era – and, for the dancer performing the title role, one of the greatest challenges in the repertory. Peter Wright’s production, a classic itself, perfectly achieves the dual aspects of the ballet, moving from the naivety of young love between Giselle and Albrecht in the village setting of Act I to the ethereal Wilis in Act II’s eerie moonlit forest. Rich in vivid character detail and poignant depth of feeling, Giselle is a reminder of ballet’s power to move and thrill.
Enjoy this video? Subscribe to our channel to receive notifications about new ballet and opera clips.
https://wn.com/Giselle_Act_I_Variation_(Yasmine_Naghdi,_The_Royal_Ballet)
Yasmine Naghdi, as Giselle, performs the Act I Variation in The Royal Ballet's production of Giselle.
Giselle is available to watch now – along with over 60 other extraordinary productions – on Royal Opera House Stream. Watch the whole performance now at https://www.roh.org.uk/tickets-and-events/giselle-2021-digital
Giselle is the classic ballet of the Romantic era – and, for the dancer performing the title role, one of the greatest challenges in the repertory. Peter Wright’s production, a classic itself, perfectly achieves the dual aspects of the ballet, moving from the naivety of young love between Giselle and Albrecht in the village setting of Act I to the ethereal Wilis in Act II’s eerie moonlit forest. Rich in vivid character detail and poignant depth of feeling, Giselle is a reminder of ballet’s power to move and thrill.
Enjoy this video? Subscribe to our channel to receive notifications about new ballet and opera clips.
- published: 29 Dec 2021
- views: 349360
-
I Just Want to Love You (2008 Version)
Provided to YouTube by Rhino/Elektra
I Just Want to Love You (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Writer: Malloy
Writer: STEVENS
Auto-generated by YouTube.
published: 04 Mar 2017
-
Hearts on Fire (2008 Version)
Provided to YouTube by Rhino/Elektra
Hearts on Fire (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Dan Tyler
Writer: Eddie Rabbitt
Writer: Even Stevens
Writer: STEVENS
Writer: Tyler
Auto-generated by YouTube.
published: 04 Mar 2017
-
Song of Ireland (2008 Version)
Provided to YouTube by Rhino/Elektra
Song of Ireland (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and WEA International for the world outside of the United States.
Writer: Rabbitt
Auto-generated by YouTube.
published: 04 Mar 2017
-
The Room at the Top of the Stairs (2008 Version)
Provided to YouTube by Rhino/Elektra
The Room at the Top of the Stairs (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Dan Tyler
Writer: Even Stevens
Auto-generated by YouTube.
published: 04 Mar 2017
-
Eddie Rabbitt - Hearts on Fire (1978)
Eddie Rabbitt - Hearts on Fire (1978)
(Eddie Rabbitt, Even Stevens, Dan Tyler)
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978
.The album produced three singles:
"Hearts on Fire", which peaked at number two
https://www.youtube.com/c/djdsouza
Stone Cold Country Music from DJ D'souza
Keeping Traditional Country Music Alive
Just for the Love of it
Please Subscribe
published: 10 Jan 2021
-
You Don't Love Me Anymore (2008 Version)
Provided to YouTube by Rhino/Elektra
You Don't Love Me Anymore (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: RAY
Writer: Raymond
Auto-generated by YouTube.
published: 04 Mar 2017
-
Plain as the Pain on My Face (2008 Version)
Provided to YouTube by Rhino/Elektra
Plain as the Pain on My Face (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Writer: STEVENS
Auto-generated by YouTube.
published: 04 Mar 2017
-
Caroline (2008 Version)
Provided to YouTube by Rhino/Elektra
Caroline (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Auto-generated by YouTube.
published: 04 Mar 2017
-
Eddie Rabbitt - Plain as the Pain on My Face (1978)
Eddie Rabbitt - Plain as the Pain on My Face
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978
https://www.youtube.com/c/djdsouza
Stone Cold Country Music from DJ D'souza
Keeping Traditional Country Music Alive
Just for the Love of it
Please Subscribe
published: 23 May 2021
4:12
I Just Want to Love You (2008 Version)
Provided to YouTube by Rhino/Elektra
I Just Want to Love You (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States an...
Provided to YouTube by Rhino/Elektra
I Just Want to Love You (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Writer: Malloy
Writer: STEVENS
Auto-generated by YouTube.
https://wn.com/I_Just_Want_To_Love_You_(2008_Version)
Provided to YouTube by Rhino/Elektra
I Just Want to Love You (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Writer: Malloy
Writer: STEVENS
Auto-generated by YouTube.
- published: 04 Mar 2017
- views: 112375
2:36
Hearts on Fire (2008 Version)
Provided to YouTube by Rhino/Elektra
Hearts on Fire (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA Int...
Provided to YouTube by Rhino/Elektra
Hearts on Fire (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Dan Tyler
Writer: Eddie Rabbitt
Writer: Even Stevens
Writer: STEVENS
Writer: Tyler
Auto-generated by YouTube.
https://wn.com/Hearts_On_Fire_(2008_Version)
Provided to YouTube by Rhino/Elektra
Hearts on Fire (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Dan Tyler
Writer: Eddie Rabbitt
Writer: Even Stevens
Writer: STEVENS
Writer: Tyler
Auto-generated by YouTube.
- published: 04 Mar 2017
- views: 204555
4:37
Song of Ireland (2008 Version)
Provided to YouTube by Rhino/Elektra
Song of Ireland (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and WEA Internati...
Provided to YouTube by Rhino/Elektra
Song of Ireland (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and WEA International for the world outside of the United States.
Writer: Rabbitt
Auto-generated by YouTube.
https://wn.com/Song_Of_Ireland_(2008_Version)
Provided to YouTube by Rhino/Elektra
Song of Ireland (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and WEA International for the world outside of the United States.
Writer: Rabbitt
Auto-generated by YouTube.
- published: 04 Mar 2017
- views: 25731
3:40
The Room at the Top of the Stairs (2008 Version)
Provided to YouTube by Rhino/Elektra
The Room at the Top of the Stairs (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United...
Provided to YouTube by Rhino/Elektra
The Room at the Top of the Stairs (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Dan Tyler
Writer: Even Stevens
Auto-generated by YouTube.
https://wn.com/The_Room_At_The_Top_Of_The_Stairs_(2008_Version)
Provided to YouTube by Rhino/Elektra
The Room at the Top of the Stairs (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Dan Tyler
Writer: Even Stevens
Auto-generated by YouTube.
- published: 04 Mar 2017
- views: 719311
2:36
Eddie Rabbitt - Hearts on Fire (1978)
Eddie Rabbitt - Hearts on Fire (1978)
(Eddie Rabbitt, Even Stevens, Dan Tyler)
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978...
Eddie Rabbitt - Hearts on Fire (1978)
(Eddie Rabbitt, Even Stevens, Dan Tyler)
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978
.The album produced three singles:
"Hearts on Fire", which peaked at number two
https://www.youtube.com/c/djdsouza
Stone Cold Country Music from DJ D'souza
Keeping Traditional Country Music Alive
Just for the Love of it
Please Subscribe
https://wn.com/Eddie_Rabbitt_Hearts_On_Fire_(1978)
Eddie Rabbitt - Hearts on Fire (1978)
(Eddie Rabbitt, Even Stevens, Dan Tyler)
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978
.The album produced three singles:
"Hearts on Fire", which peaked at number two
https://www.youtube.com/c/djdsouza
Stone Cold Country Music from DJ D'souza
Keeping Traditional Country Music Alive
Just for the Love of it
Please Subscribe
- published: 10 Jan 2021
- views: 3239
3:23
You Don't Love Me Anymore (2008 Version)
Provided to YouTube by Rhino/Elektra
You Don't Love Me Anymore (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States ...
Provided to YouTube by Rhino/Elektra
You Don't Love Me Anymore (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: RAY
Writer: Raymond
Auto-generated by YouTube.
https://wn.com/You_Don't_Love_Me_Anymore_(2008_Version)
Provided to YouTube by Rhino/Elektra
You Don't Love Me Anymore (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: RAY
Writer: Raymond
Auto-generated by YouTube.
- published: 04 Mar 2017
- views: 482160
2:24
Plain as the Pain on My Face (2008 Version)
Provided to YouTube by Rhino/Elektra
Plain as the Pain on My Face (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and ...
Provided to YouTube by Rhino/Elektra
Plain as the Pain on My Face (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Writer: STEVENS
Auto-generated by YouTube.
https://wn.com/Plain_As_The_Pain_On_My_Face_(2008_Version)
Provided to YouTube by Rhino/Elektra
Plain as the Pain on My Face (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Writer: STEVENS
Auto-generated by YouTube.
- published: 04 Mar 2017
- views: 19169
3:15
Caroline (2008 Version)
Provided to YouTube by Rhino/Elektra
Caroline (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA Internati...
Provided to YouTube by Rhino/Elektra
Caroline (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Auto-generated by YouTube.
https://wn.com/Caroline_(2008_Version)
Provided to YouTube by Rhino/Elektra
Caroline (2008 Version) · Eddie Rabbitt
Variations
℗ 1978 Elektra/Asylum Records for the United States and WEA International for the world outside of the United States.
Writer: Eddie Rabbitt
Auto-generated by YouTube.
- published: 04 Mar 2017
- views: 5621
2:23
Eddie Rabbitt - Plain as the Pain on My Face (1978)
Eddie Rabbitt - Plain as the Pain on My Face
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978
https://www.youtube.com/c/djds...
Eddie Rabbitt - Plain as the Pain on My Face
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978
https://www.youtube.com/c/djdsouza
Stone Cold Country Music from DJ D'souza
Keeping Traditional Country Music Alive
Just for the Love of it
Please Subscribe
https://wn.com/Eddie_Rabbitt_Plain_As_The_Pain_On_My_Face_(1978)
Eddie Rabbitt - Plain as the Pain on My Face
Variations is the fourth studio album
by Eddie Rabbitt.
It was released in 1978
https://www.youtube.com/c/djdsouza
Stone Cold Country Music from DJ D'souza
Keeping Traditional Country Music Alive
Just for the Love of it
Please Subscribe
- published: 23 May 2021
- views: 1392