Question

(a) Explain the phenomena of multiple allelism and co-dominance taking ABO blood group as an example.
(b) What is the phenotype of the following:
(i) IAi
(ii) ii

Answer 1

Answer:

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Explanation:

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Answer 2

(a) The phenomena of multiple allelism is when a gene contains three alleles in a population.Example- ABO blood group of human contains three allele i.e, Iᵃ ,Iᵇ and i .

The phenomena of co-dominance is when two allele expressed co-dominantly .Example-ABO blood group of human ,when Iᵃ and Iᵇ comes together they express them co-dominantly with forming blood group AB.

(b) The phenotype of the following are:

(i) Iᵃi - A blood group.

(ii) ii - O blood group.