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What is genetics?

Genetics is the study of how traits such as hair color, eye color, and risk for disease are passed (“inherited”) from parents to their children. Genetics influence how these inherited traits can be different from person to person. Your genetic information is called your genetic code or “genome.” Your genome is made up of a chemical called deoxyribonucleic acid (DNA) and is stored in almost every cell in your body.

Reference: 
Introduction to Genetics: https://www.my46.org/intro/what-is-genetics

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