If a normal woman marries an albino man and t | vedclass

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

Question

(B) Albinism is an autosomal recessive trait. Let $A$ be the allele for normal skin pigmentation and $a$ be the allele for albinism.An albino man must

Vedclass · Accepted Answer

Heterozygous normal

Vedclass · Answer

(B) Albinism is an autosomal recessive trait. Let $A$ be the allele for normal skin pigmentation and $a$ be the allele for albinism.An albino man must have the genotype $aa$.$A$ normal woman can be either $AA$ or $Aa$.If the woman were $AA$ (homozygous normal),all offspring would be $Aa$ (normal phenotype).If the woman is $Aa$ (heterozygous normal),the cross $Aa 	imes aa$ results in $50\%$ $Aa$ (normal) and $50\%$ $aa$ (albino) offspring.Since the offspring are half albino and half normal,the woman must be heterozygous normal $(Aa)$.

If a normal woman marries an albino man and their offspring are half albino and half normal,then the woman is:

Similar Questions

Select the incorrect statement from the following.

$A$ recessive mutant is one which:

The seven pairs of contrasting traits in pea plants studied by Mendel were actually located on how many chromosomes?

Statement-$I$: The segregation of alleles is a random process and so there is a $50\%$ chance of a gamete containing either allele.
Statement-$II$: Alleles do not show any blending at either $F_1$ or $F_2$ generation.

In the case of $PTC$ tasters and non-tasters in humans,$T$ represents the dominant allele and $t$ represents the recessive allele. Which of the following genotypes is unable to taste $PTC$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module