Three children in a family have blood types O | vedclass

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

Question

(A) To have a child with blood type $O$ (genotype $ii$),both parents must contribute an $i$ allele. Therefore,both parents must be heterozygous.To hav

Vedclass · Accepted Answer

$I^A i$ and $I^B i$

Vedclass · Answer

(A) To have a child with blood type $O$ (genotype $ii$),both parents must contribute an $i$ allele. Therefore,both parents must be heterozygous.To have a child with blood type $AB$ (genotype $I^A I^B$),one parent must contribute $I^A$ and the other must contribute $I^B$.To have a child with blood type $B$ (genotype $I^B i$ or $I^B I^B$),the parents must possess the $I^B$ allele.Combining these requirements,the parents must have genotypes $I^A i$ and $I^B i$. - Parent $1$ $(I^A i)$ can produce gametes $I^A$ and $i$.- Parent $2$ $(I^B i)$ can produce gametes $I^B$ and $i$.- Possible offspring genotypes: $I^A I^B$ (Type $AB$),$I^A i$ (Type $A$),$I^B i$ (Type $B$),and $ii$ (Type $O$).Thus,the parents' genotypes are $I^A i$ and $I^B i$.

Three children in a family have blood types $O$,$AB$ and $B$ respectively. What are the genotypes of their parents?

Similar Questions

Which one of the following human organs is often called the "graveyard" of $RBCs$?

What physiological circumstances lead to erythroblastosis foetalis?

Which antisera is used to detect the $Rh$ blood group?

Serum is

The protein which prevents coagulation of blood in the blood vessel is

Vedclass Test Series

Exam Paper Generator

Online Exam Module