deoxyribonucleic acid [also called DNA]


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(DEE-ok-see-RYE-boh-noo-KLEE-ik ASS-id)

The molecules inside cells that carry genetic information. DNA directs the production of proteins that regulate cell activity and growth. DNA is passed from old cells to new cells. And genes are passed from parent to child, from one generation to the next.

Read more about genetics as a breast cancer risk factor.

Brokaw_tom_tcm8-329452

Audio contributed by: Tom Brokaw

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