Q. 12
Occasionally, a single gene may express more than one effect. The phenomenon is called:
A. multiple allelism
B. mosaicism
C. pleiotropy
D. polygeny
Answer :
Multiple allelism is the phenomenon by which a single gene may express more than one effect. ABO blood grouping in humans is a good example for multiple allelism in which more than two that is three alleles are governing the same character.(IA, IB, i are the allels of gene I that control the ABO blood groups).
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