DNA
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Learner's definition of DNA
[noncount]
:
a substance that carries genetic information in the cells of plants and animals
— often used before another noun
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DNA analysis
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DNA testing
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a DNA fingerprint [=a sample of a person's DNA that can be used to identify someone, such as a criminal]
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DNA fingerprinting
◊ DNA is an abbreviation of “deoxyribonucleic acid.”
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compare nucleic acid, rna
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