A colorblind man marries a normal woman whose | vedclass

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

Question

(C) Colorblindness is an $X$-linked recessive trait. Let $X^c$ represent the allele for colorblindness and $X$ represent the normal allele. The man is

Vedclass · Accepted Answer

One son and one daughter

Vedclass · Answer

(C) Colorblindness is an $X$-linked recessive trait. Let $X^c$ represent the allele for colorblindness and $X$ represent the normal allele. The man is colorblind,so his genotype is $X^c Y$. The woman is normal but her father was colorblind,meaning she inherited the $X^c$ allele from him. Thus,her genotype is $X X^c$. Crossing $X^c Y$ (man) with $X X^c$ (woman): Offspring genotypes: $X X^c$ (carrier daughter),$X^c X^c$ (colorblind daughter),$X Y$ (normal son),$X^c Y$ (colorblind son). Statistically,there is a $50\%$ chance for each child to be colorblind regardless of gender. However,in the context of this specific cross,one son and one daughter are expected to be colorblind.

$A$ colorblind man marries a normal woman whose father was colorblind. Among their two sons and two daughters,who will be colorblind?

Similar Questions

Which disease is caused by a gene defect located on chromosome $16$,leading to a deficiency that affects the transport of respiratory gases?

Describe pedigree analysis and draw its symbols.

In the $\beta$-globin chain of haemoglobin of an individual,if the sixth amino acid,Glutamic acid (Glu),is replaced by Valine (Val),then the individual will be suffering from:

Which one of the following is a sex-linked trait?

In the given pedigree chart,which Mendelian disorder is represented?

Vedclass Test Series

Exam Paper Generator

Online Exam Module