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A pregnant woman has an equal chance of ...

A pregnant woman has an equal chance of her baby being blood group A or blood group AB. Which one of the following shows the possible genotypes of the woman and the father of her child ?

A

`I^(A) I^(A) and I^(B) I^(o)`

B

`I^(A) I^(B) and I^(B) I^(o)`

C

`I^(A) I^(o) and I^(B) I^(o)`

D

`I^(A) I^(B) and I^(A) I^(0)`

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