Which one might be the blood group of an individual with the following genetic makeup, "LMLN, ii, Dd, hh"?
Correct answer: A. Phenotypically MN, O, and positive
- A. Phenotypically MN, O, and positive
- B. Phenotypically MN, A, and negative
- C. Phenotypically MN, A and positive
- D. Phenotypically MN, O and negative
Explanation
MN phenotype has both M and N antigens, simultaneously produced by their alleles LM and LN. The homozygous ii will produce phenotype O.Persons having genotype DD or Dd have Rh factor on their RBC and are Rh+.
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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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