A child's blood group is 'O'. The parents blood groups cannot be [CBSE – McqOptions

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1.	A child's blood group is 'O'. The parents blood groups cannot be [CBSE PMT 1994; Kerala PMT 2005]
A.	AB and O
B.	B and O
C.	A and B
D.	A and A
Answer» B. B and O

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