What will be the percentage of affected sons, | vedclass

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

Question

(A) Colour blindness is an $X$-linked recessive disorder.Let $X^C$ be the allele for colour blindness and $X$ be the normal allele.The father is colou

Vedclass · Accepted Answer

$0$

Vedclass · Answer

(A) Colour blindness is an $X$-linked recessive disorder.Let $X^C$ be the allele for colour blindness and $X$ be the normal allele.The father is colour-blind,so his genotype is $X^C Y$.The mother is normal,so her genotype is $X X$.When these parents cross: $X^C Y 	imes X X$.The possible offspring genotypes are:$1$. $X X^C$ (Carrier daughter)$2$. $X X^C$ (Carrier daughter)$3$. $X Y$ (Normal son)$4$. $X Y$ (Normal son)Since all sons receive their $X$ chromosome from their mother and $Y$ chromosome from their father,and the mother is normal $(X X)$,all sons will be normal.Therefore,the percentage of affected sons is $0 \%$.

What will be the percentage of affected sons,whose father is colour-blind and mother is normal (in $\%$)?

Similar Questions

Sickle cell anemia cannot be eliminated from the African population because ........... .

Phenylketonuria is a genetic disorder of

Which disease is caused by the deficiency of factor $VIII$?

Double lines in pedigree analysis show

Hemophilia is more common in males because it is a:

Vedclass Test Series

Exam Paper Generator

Online Exam Module