A normal woman,whose father was colour-blind, | vedclass

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

Question

(D) Colour blindness is an $X$-linked recessive trait.Since the woman's father was colour-blind,she must have inherited the recessive allele for colou

Vedclass · Accepted Answer

$50\%$ colour-blind

Vedclass · Answer

(D) Colour blindness is an $X$-linked recessive trait.Since the woman's father was colour-blind,she must have inherited the recessive allele for colour blindness from him. Thus,the woman is a carrier with the genotype $X^cX$.The normal man has the genotype $XY$.When they cross $(X^cX 	imes XY)$,the possible genotypes for their offspring are:$X^cX$ (Carrier daughter)$XX$ (Normal daughter)$X^cY$ (Colour-blind son)$XY$ (Normal son)Out of the two possible genotypes for sons ($X^cY$ and $XY$),one is colour-blind and one is normal.Therefore,$50\%$ of the sons would be colour-blind.

$A$ normal woman,whose father was colour-blind,is married to a normal man. The sons would be

Similar Questions

Which of the following cannot be included in Mendelian disorders?

Hemophilia is more common in males than in females because...

In sickle cell anaemia,the death is caused when the lethal genes are present in

Which of the following abnormalities is due to an autosomal dominant mutation?

From the following pedigree chart of a family,one can make an analysis that:

Vedclass Test Series

Exam Paper Generator

Online Exam Module