<cell biology, genetics> Nucleus, cell or organism that has only one of a normally diploid set of genes. In mammals the male is hemizygous for the X chromosome. ... (18 Nov 1997) ... 
(hem″e-zi´gōt) an individual exhibiting hemizygosity, such as males with the X chromosome.
Nucleus, cell or organism that has only one of a normally diploid set of genes. In mammals the male is hemizygous for the X chromosome.
Type: Term Pronunciation: hem′ē-zī′gōt Definitions: 1. An individual hemizygous with respect to one or more specified loci; a normal male is a hemizygote with respect to the gene for all X-linked or Y-linked genes in his genome.