Foundation35 min3 min read

DNA and Genetics — Why You Look Like Your Parents

Two meters of instructions folded into a space smaller than a grain of sand — that is the DNA inside every one of your 37 trillion cells.

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Key Takeaway

DNA carries genetic instructions in a four-letter code (A, T, G, C). You inherit half from each parent. Genetics explains traits, diseases, and evolution.

01

Describe the structure of DNA and the base-pairing rule

02

Explain how traits are inherited from parents to children

03

Apply Mendelian genetics to predict trait inheritance

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