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Question

Assertion :A gene affecting the character of another gene not located on similar locus of the homologus chromosome is called epistatic gene. Reason: Epistatic gene hides the expression of an allele at a different locus.


A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
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C
Assertion is correct but Reason is incorrect.
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D
Both Assertion and Reason are incorrect.
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Epistasis is the masking of the expression of one gene by another gene at a different locus. The gene which does the masking is called as epistatic gene and the gene which is masked is called as hypostatic gene. Expression of epistatic gene produces a protein product which affects the expression of hypostatic gene.
Thus, the correct answer is option A.

Biology

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