Multiple choice general knowledge

If father has blood group A and mother has blood group O, the Blood group of child can be

  1. A

  2. B

  3. AB

  4. O
Reveal answer Fill a bubble to check yourself
A,D Correct answer
Explanation

Father with blood group A (AA or AO) and mother with O (OO) can only pass A or O alleles. Children can be A (if father contributes A and mother contributes O) or O (if both contribute O). They cannot be B or AB since neither parent has a B allele.

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