Genetics & Heredity

Why Is the Ratio of Male to Female Births Roughly 50:50?

What Percentage of DNA Do Half Siblings Share?

What Are Traits? The Definition and Genetics of Traits

Epigenetics: How the Environment Changes Gene Expression

Why Do I Look More Like My Dad?

The HTT Gene: Function, Mutation, and Huntington’s Disease

How Much DNA Do You Need to Claim Ethnicity?

How Rare Is Dark Hair and Blue Eyes?

How Many Genes Does a Human Have?

How an ATM Mutation Increases Your Cancer Risk