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GK QUESTION#3979

In the context of genetics, “ pleiotropy ” refers to:

  1. AMultiple genes responsible for one specific trait
  2. BOne gene influencing several traits simultaneouslyCorrect answer
  3. CDuplication of an existing gene
  4. DMutation occurring in a single allele
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Answer

B. One gene influencing several traits simultaneously

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Explanation

Pleiotropy occurs when a single gene or genetic variant influences more than one phenotypic trait. Multiple genes contributing to one trait is a different concept.

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