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Biotechnology and Its Applications
Question
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A pleiotropic gene

  • is expressed only in primitive plants.

  • is a gene evolved during Pliocene

  • controls a trait only in combination with another gene

  • controls multiple traits in an individual

Answer

D.

controls multiple traits in an individual

Pleiotropic gene is a gene that controls multiple traits is an individual. It is also called polyphenic gene, e.g., phenylketonuria causing multiple adverse effects due to the mutation in a single gene coding for enzyme phenylalanine hydroxylase.

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