(A) The blood group $A$ can have genotypes $I^A I^A$ or $I^A i$. The blood group $B$ can have genotypes $I^B I^B$ or $I^B i$.If the male is $I^A i$ an

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$I^A i$ (Male) : $I^B I^B$ (Female)

(A) The blood group $A$ can have genotypes $I^A I^A$ or $I^A i$. The blood group $B$ can have genotypes $I^B I^B$ or $I^B i$.If the male is $I^A i$ and the female is $I^B I^B$,the possible offspring genotypes are $I^A I^B$ (blood group $AB$) and $I^B i$ (blood group $B$).This matches the given progeny blood groups ($AB$ or $B$).Therefore,the correct genotype for the parents is $I^A i$ (Male) and $I^B I^B$ (Female).

Class 12 Biology Principles of Inheritance and Variation Multiple alleles

Medium

In a marriage between a male with blood group $A$ and a female with blood group $B$,the progeny had either blood group $AB$ or $B$. What could be the possible genotype of parents?

NEET 2019 All NEET

A
$I^A i$ (Male) : $I^B I^B$ (Female)
B
$I^A I^A$ (Male) : $I^B I^B$ (Female)
C
$I^A I^A$ (Male) : $I^B i$ (Female)
D
$I^A i$ (Male) : $I^B i$ (Female)

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Principles of Inheritance and Variation

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Multiple alleles

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$\quad P \quad\quad Q$

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In a marriage between a male with blood group $A$ and a female with blood group $B$,the progeny had either blood group $AB$ or $B$. What could be the possible genotype of parents?

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$A$ child has blood group $O$. If the father has blood group $A$ and mother has blood group $B$,work out the genotypes of the parents and the possible genotypes of the other offspring.

$A$ man of blood group-$A$ marries a woman of blood group-$B$. Both of them are heterozygous for their blood group. The chances of their first child having blood group $AB$ will be: (in $, \%$)

In $ABO$ blood grouping,there are $P$ genotypes and $Q$ phenotypes.$\quad P \quad\quad Q$

$A$ couple has four children with blood groups $A, AB, A,$ and $O$ respectively. What are the genotypes of the parents' blood groups?

$A$ pair of contrasting characters is termed as

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In $ABO$ blood grouping,there are $P$ genotypes and $Q$ phenotypes.
$\quad P \quad\quad Q$