A pleiotropic gene

A pleiotropic gene
  1. is a gene evolved during Pliocene.
  2. controls a trait only in combination with another gene.
  3. controls multiple traits in an individual.
  4. is expressed in only primitive plants.

Solution

It is a single gene that controls multiple traits in an individual. Examples of pleiotropy are phenylketonuria, albinism, sickle cell anemia, autism and schizophrenia.

Asked in: NEET 2015 (Phase 2)

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