A description of daughters who inherit the gene for hemophilia is that they ______.
A) usually die from the disease before reaching the age of 20
B) demonstrate more severe symptoms than sons who inherit the gene
C) typically fail to express the disorder due to a paired dominant gene
D) have an 80 percent chance of transmitting the gene to their offspring

Question

Quizplus · Accepted Answer

Hemophilia is a sex-linked recessive disorder, meaning it is carried on the X chromosome. Females have two X chromosomes, so if they inherit one X chromosome with the hemophilia gene, the other X chromosome can have a normal gene that compensates. Therefore, females who carry the gene for hemophilia typically do not express the disorder due to the presence of a paired dominant normal gene on the other X chromosome.

A Description of Daughters Who Inherit the Gene for Hemophilia