The term hemizygous refers to
A)autosomal characteristics in diploid populations.
B)incomplete dominance of phenotypic traits.
C)having two different alleles on the loci of polyploidal species.
D)X-linked characteristics expressed in mammalian males.
E)X-linked characteristics in mammalian females resulting from Barr body silencing.

Question

Quizplus · Accepted Answer

Hemizygosity refers to the presence of only one allele on a gene locus in a diploid organism, and this often occurs in X-linked traits in male mammals. This is because males possess only one X chromosome, while females have two X chromosomes. Therefore, the male phenotype is expressed from the single copy of an X-linked gene that they have, which makes them hemizygous.

The Term Hemizygous Refers to