Question

In: Biology

Part A: In a disputed parentage case, the child is blood type O, while the mother...

Part A: In a disputed parentage case, the child is blood type O, while the mother is blood type O. What are the possible blood type(s) for the father?

Select all that apply.

O

B

A

AB

Part B: If the child is blood type B, while the mother is blood type O. What blood type would exclude a male from being the father?

Select all that apply.

AB

A

B

O

Solutions

Expert Solution

ANSWER
Father's blood type - A, B , O
1. Child'ss blood type - O , genotype - ii
Mother's blood type- O , genotype - ii
Possiblle types for the father can be , A, B or O ( that is with genotypes IAi , IBi or ii respectively)
Where, : ii represents genotype of O blood group
IA i - genotype of A blood group or child to be of O type
IBi - genotype of B blood group for child to be O type.


B . Answer - Blood type excluded for being a father- A and O
Explanation - If the child's blood type is B ( Ibi) and mother blood type is O (ii )
then father must have presence of at least one allele with B type therefore it can be either with AB or B blood type.


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