crossing over of A & B blood group

You will read about this i your next class. For the time being, try to understand that blood group is a case of multiple alleles. It has three alleles IA , IB and IO/i 

Genotype 

Blood type

A A

A

A B

AB

A i

A

A B

AB

B B

B

B i

B

i i

O

So, If a person has blood group A, the genotype can be either A or I A i and if a person has blood group B, the genotype can be eitherB I B or I B i.

So, you can try to make a cross on yourself between these two on the basis of the above genotypic possibilities. 

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