Question
A pleiotropic gene
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is expressed only in primitive plants.
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is a gene evolved during Pliocene
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controls a trait only in combination with another gene
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controls multiple traits in an individual
Solution
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.
