Longman Dictionary of Contemporary English homepage

Topic: BIOLOGY

DNA

 noun
     
DNA [uncountable]
HB
deoxyribonucleic acid
a substance that carries genetic information in the cells of the body
DNA testing/profiling/fingerprinting/evidence etc (=processes that examine DNA samples to help discover who has committed a crime)
The men will undergo voluntary DNA testing of their saliva.
Definition of DNA from the Longman Dictionary of Contemporary English within
the topic BIOLOGY
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