The four children of, two parents each, have different blood group of the ABO series. What were the blood groups of the parents?
Correct answer: B. A and B
- A. A and AB
- B. A and B
- C. A and O
- D. None of these
Explanation
a) A and AB:If one parent has blood type A and the other parent has blood type AB, it is possible for their children to have different blood types of the ABO series. The children could inherit either blood type A or blood type B from the parent with blood type A, and they could inherit blood type A or blood type B from the parent with blood type AB. Therefore, this option is a possible scenario.
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Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.
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