A woman has a haemophilic son and three norma | vedclass

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

Question

(D) Haemophilia is an $X$-linked recessive disorder.Since the woman has a haemophilic son $(X^hY)$,the son must have inherited the $X^h$ chromosome fr

Vedclass · Accepted Answer

$X^hX$ and $XY$

Vedclass · Answer

(D) Haemophilia is an $X$-linked recessive disorder.Since the woman has a haemophilic son $(X^hY)$,the son must have inherited the $X^h$ chromosome from his mother.Therefore,the mother must be a carrier of the haemophilia gene,meaning her genotype is $X^hX$.Since the woman has three normal children,and the father is normal $(XY)$,the father's genotype is $XY$.If the father were haemophilic $(X^hY)$,he would pass the $X^h$ gene to all his daughters,making them carriers or affected,but the question implies the father is normal.

$A$ woman has a haemophilic son and three normal children. What is the genotype of the woman and her husband?

Similar Questions

If a father shows a normal genotype for hemophilia,what will be the outcome for his children?

Which one of the following is a dominant trait?

In Cooley's Anemia,the affected chain of a haemoglobin is

Mark the correct statement with respect to sickle-cell anaemia.

Which of the following is a Mendelian disorder?

Vedclass Test Series

Exam Paper Generator

Online Exam Module