Crossword Genius

Trait transmitter (4)

Ross

I believe the answer is:

gene

'trait transmitter' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for gene that I've seen before include "Bodily factor controlling heredity" , "Embarrassment" , "A segment of DNA" , "may be passed to child" , "DNA unit" .)

I've seen this clue in the Universal and The Wall Street Journal.
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