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Medical Term:

hemizygous

Pronunciation: hem'e-zi'gus

Definition: Pertaining to a gene of which only one copy is present in an organism having diploid cells. In human beings, refers to genes on the X chromosome in males, which are expressed whether dominant or recessive.

Synonym(s): hemizygotic

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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