The AB blood group of humans is an example of
Correct answer: C. codominance
- A. incomplete dominance
- B. sex linkage
- C. codominance
- D. epistasis
Explanation
A person of group AB makes both the A antigen and the B antigen on the red cell surface, so neither allele is diluted or masked and both are expressed fully at the same time. That is codominance, not incomplete dominance, which would give a single intermediate antigen instead of two separate ones. Both alleles are dominant to the recessive O allele.
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About Mendel's Laws of Inheritance
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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