(a) Why is human ABO blood group gene considered a good example of multiple alleles?
(b) Work out a cross up to `F_(1)` generation only, between a mother with blood group A (Homozygous) and the father with blood group B (Homozygous). Explain the pattern of inheritance exhibited.

If mother's blood group is A and father's blood group is B , child's blood could be

Blood group of the father is A and blood group of mother is B. then predict the blood group of the progeny-

Assertion : ABO blood group system provides a good example of multiple alleles Reason : In ABO blood group system, when I^(A) and I^(B) alleles are present together, they both express their own types

If mother have only 'b,' antibody & blood group of father is 'O' the blood group of child may be :-

Aman with blood groupAmarried a woman With B greup. They have a son withAB blood group and a daughter with blood group O. Work out the cross and show the possibility of such inheritance.

A child has blood groups 'O'. If father has blood group 'A' and mother has blood group 'B'. Work out the genotypes of the partents

A women with blood group A married a men with B group . Show the possible blood groups of the progeny . List the alleles involved in this inheritance.

(i) Human beings have three alleles for ABO blood grouping |A||B| and i . How many of these alleles can be present in one individual and a gamete ? (ii) A child has blood group B. If the mother has blood group AB and father blood group A workout the genetypes of the parents and the possible genotypes of the other offsprings.

Blood group of mother is A. That of son is B. What is blood group of father