First slide

Pleiotropy

Question

If single gene can exhibit multiple phenotypic effect then such gene is called :

Easy

A

Multiple gene
B

Multiple allele
C

Pleiotropic gene
D

Lethal gene

Solution

A single gene can exhibit multiple phenotypic expression. Such a gene is called a pleiotropic gene. An example of this is the disease phenylketonuria, which occurs in humans. This manifests itself through phenotypic expression characterised by mental retardation and a reduction in hair and skin pigmentation.

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