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Question

A gene which suppresses the effect of another gene not located on the similar locus of the homologous chromosomes is called as

A
Duplicate gene
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B
Complementary gene
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C
Epistatic gene
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D
Supplementary gene
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Solution

The correct option is D Epistatic gene
Epistatic gene, in genetics, a gene that determines whether or not a trait will be expressed. The system of genes that determines skin colour in man, for example, is independent of the gene responsible for albinism (lack of pigment) or the development of skin colour. This gene is an epistatic gene. When the albino condition occurs, the genes that determine skin colour are present but not expressed.

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