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Science · Grades 7–8

Dna

noun

Deoxyribonucleic acid — the molecule that carries genetic information in living organisms.

Example Sentences

"DNA is found in the nucleus of every cell in your body."

"Scientists use DNA analysis to identify individuals or trace ancestry."

Synonyms & Related Terms

genetic codedouble helix

Quick Check

Which best describes the meaning of DNA?

Study Tips

To remember DNA, try writing it in a sentence of your own. Connect it to something you already know about science.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.