A man with blood group A marries a woman with blood group B. What are all the possible blood groups of their offspring?
Correct answer: A. A, B, AB, and O
- A. A, B, AB, and O
- B. O only
- C. A and B only
- D. A, B, and AB only
Explanation
If parents are heterozygous (AO × BO) their gametes can produce IA , IB or i combinations giving A, B, AB or O offspring.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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