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If two persons with ‘AB’ blood group marry and have sufficiently large number of children, these children could be classified as ‘A’ blood group : 'AB' blood group: ‘B’ bloodgroup in 1: 2: 1 ratio. Modern technique of protein electrophoresis reveals presence of both ‘A’ and ‘B’ type proteins in ‘AB’ blood group individuals. This is an example of(A) Codominance(B) Incomplete dominance(C) Partial dominance(D) Complete dominance |
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Answer» (A) Codominance In Co-dominance, both alleles of a gene pair in heterozygote are fully expressed, with neither one being dominant or recessive to the other. Allele IA and IB when present together in AB blood group, express their own type of sugar on the surface of RBC. Thus, it is an example of Co-dominance. |
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