Crossword Genius

Genomics focus (3)

Ross

I believe the answer is:

dna

(Other definitions for dna that I've seen before include "Deoxyribonucleic acid (abbreviation)" , "Substance that stores genetic information - often used by police" , "Genetic-code molecule" , "It carries genetic information" , "Double-helix molecule (abbr.)" .)

I've seen this clue in the LA Times.
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