If a female has blood group A and her husband has blood group O, then the blood group of their children would possibly be:
Correct answer: B. A and O groups only
- A. A and B groups only
- B. A and O groups only
- C. AB only
- D. All four groups
Explanation
Mother A can be IᴬIᴬ ,or Iᴬi; father is O can be ii. Offspring genotypes are Iᴬi (type A) or ii (type O). B or AB are impossible because no B allele is provided.
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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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