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Houghton Mifflin

al·lele  audio  (-ll) KEY 

NOUN:
One member of a pair or series of genes that occupy a specific position on a specific chromosome.

ETYMOLOGY:
German Allel, short for Allelomorph, allelomorph, from English allelomorph

OTHER FORMS:
al·lelic  (-llk, -llk) KEY (Adjective), al·lelism(Noun)


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