hemizygous

adjective hemi·zy·gous \ ˌhe-mi-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

First Known Use of hemizygous

circa 1921

in the meaning defined above

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Medical Dictionary

hemizygous

adjective hemi·zy·gous \ -ˈzī-gəs \

medical 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

hemizygosity

play \-zī-ˈgäs-ə-tē\ noun, plural -ties

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