If the father has blood group A and the mother has blood group B, then the children can have blood of which of the following types?
Correct answer: D. A, B, AB, O
- A. A only
- B. AB only
- C. B only
- D. A, B, AB, O
Explanation
Considering both the mother and father have heterozygous genotypes for B and A blood groups, respectively, their genotypes would thus be: IBi x IAi The children may then have any of the following genotypes and phenotypes: IBIA (AB) IBi (B) IAi (A) ii (O)
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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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