adj \-ˈzī-gəs\

Definition of HEMIZYGOUS

: having or characterized by one or more genes (as in a genetic deficiency or in an X chromosome paired with a Y chromosome) that have no allelic counterparts
hemi·zy·gos·i·ty \-zī-ˈgäs-ə-tē\ noun, plural hemi·zy·gos·i·ties

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