Multiple choice

Parents with blood group O and AB will have children with blood group:

  1. O and A

  2. O and B

  3. A and B

  4. A,B and O
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Parent with blood group O (genotype ii) can only pass i allele. Parent with AB (genotype IAIB) can pass either IA or IB. Children will have genotypes IAi (type A) or IBi (type B). Type O children (ii) are impossible since the AB parent cannot contribute an i allele.

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