A woman with normal vision marries a man with | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Color blindness is an $X$-linked recessive disorder.Let the normal vision allele be $X^C$ and the color-blindness allele be $X^c$.The son is color

Vedclass · Accepted Answer

$X^C X^c$

Vedclass · Answer

(C) Color blindness is an $X$-linked recessive disorder.Let the normal vision allele be $X^C$ and the color-blindness allele be $X^c$.The son is color-blind,so his genotype must be $X^c Y$.$A$ son inherits his $Y$ chromosome from his father and his $X$ chromosome from his mother.Therefore,the son must have inherited the $X^c$ chromosome from his mother.Since the mother has normal vision,she must possess at least one dominant $X^C$ allele.Thus,the mother's genotype must be $X^C X^c$ (a carrier).

$A$ woman with normal vision marries a man with normal vision and they have a color-blind son. What is the genotype of the mother?

Similar Questions

Genetic counsellors can identify heterozygous individuals by

Knowing that albinism is determined by a recessive gene in humans,the presence of albinism in children born to a couple proves that:

Pedigree analysis is very important in human beings because

Cystic fibrosis,Myotonic dystrophy,and Thalassemia are:

In humans,a gene located on the $X$-chromosome can be responsible for:

Vedclass Test Series

Exam Paper Generator

Online Exam Module