Q12 of 53 Page 29

Occasionally, a single gene may express more than one effect. The phenomenon is called:

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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10

Which of the following will not result in variations among siblings?

 11

Mendel’s Law of independent assortment holds good for genes situated on the:

 13

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are:

 14

The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to: