Males tend to be affected in greater numbers by X-linked recessive genetic disorders than are females because
A) females have two dominant genes for the disorder.
B) males have only one X chromosomes.
C) males have a double dose of the gene.
D) Y chromosomes are not as strong as X chromosomes.
E) females have two dominant genes for the disorder and males have only one recessive gene for the disorder.

Question

Quizplus · Accepted Answer

Males have only one X chromosome, so if they inherit an X-linked recessive disorder, they will express the disorder because they lack a second X chromosome that could potentially carry a normal allele.

Males Tend to Be Affected in Greater Numbers by X-Linked