Albinism in humans is controlled by a recessi | vedclass

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

Question

(C) Let the normal allele be $A$ and the recessive allele for albinism be $a$. An individual with albinism must have the genotype $aa$. If $50\%$ of t

Vedclass · Accepted Answer

The father is homozygous recessive for albinism and the mother is heterozygous.

Vedclass · Answer

(C) Let the normal allele be $A$ and the recessive allele for albinism be $a$. An individual with albinism must have the genotype $aa$. If $50\%$ of the children are affected $(aa)$,it implies that the cross must be between a heterozygous parent $(Aa)$ and a homozygous recessive parent $(aa)$. This is a test cross: $Aa 	imes aa ightarrow 50\% \ Aa$ (normal carrier) and $50\% \ aa$ (albino). Therefore,one parent must be heterozygous $(Aa)$ and the other must be homozygous recessive $(aa)$.

Albinism in humans is controlled by a recessive gene. If a couple has children and $50\%$ of them exhibit albinism,what does this indicate about the parents' genotypes?

Similar Questions

Which of the following is not a hereditary disease?

$A$ man and a woman who do not show any apparent symptoms of certain genetic diseases have seven children ($2$ daughters and $5$ sons). Three of the sons suffer from the given disease,but none of the daughters are affected. Which type of inheritance pattern do you suggest for this disease?

In which of the following disorders is a single protein that is a part of the cascade of proteins involved in blood clotting affected?

An albino father's daughter marries an albino man. What will be the ratio of their offspring?

Select the correct match.

Vedclass Test Series

Exam Paper Generator

Online Exam Module