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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

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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