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URL of this page: https://medlineplus.gov/genetics/

Genetics

Find consumer-friendly information about the effects of genetic variation on human health.

Genetic Conditions

Genetic Conditions

Learn about the signs and symptoms, causes, and inheritance of more than 1,300 health conditions with a genetic basis.

Genes

Genes

Find information about the function of more than 1,400 genes and see how changes in these genes are related to health conditions.

Chromosomes and mtDNA

Chromosomes and mtDNA

Read about each of the 23 pairs of human chromosomes and mitochondrial DNA (mtDNA).

Help Me Understand Genetics

Help Me Understand Genetics

Explore topics in human genetics, from the basics of DNA to genomic research and personalized medicine.