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Write about multiple allelism with suitable example. |
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Answer» More than two i.e., three alleles governing the same character is known as multiple allelism. ABO blood grouping is a good example of multiple allelism ABO blood groups are controlled by the gene I. The plasma membrane of the red blood cells has sugar polymers that protude from its surface and this kind of sugar is controlled by the gene. The gene I has three alleles IA, IB and i. The alleles IA and IB produce a slightly different form of the sugar while allel i doesn't produce any sugar. |
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