Crossword Genius

Units of heredity (5)

Ross

I believe the answer is:

genes

'units of heredity' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for genes that I've seen before include "Factors governing heredity, carried by chromosome" , "Units of DNA" , "Units of heredity" , "Biological factors controlling heredity" .)

I've seen this clue in the Newsday.com, The Telegraph, The Independent and The Washington Post.
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