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Question

It is impossible for an O+ baby to have a ____________ mother:

A
AB-
✓ Official correct answer
B
O-
C
O+
D
none

Community credibility

Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.

A
AB-
Official option

No member explanations yet for this option.

B
O-
Official option

No member explanations yet for this option.

C
O+
Official option

No member explanations yet for this option.

D
none
Official option

No member explanations yet for this option.

Explanation

An AB mother cannot have a group O child (no O allele to give).

So the keyed answer is AB-.

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