Identify the statement that is not true regarding polygenic trait… - Vidyadip

MCQ

Identify the statement that is not true regarding polygenic traits.

A
Such traits are generally controlled by three or more genes.
✓
In polygenic traits a single gene can exhibit multiple phenotypic expressions.
C
Besides the involvement of multiple genes it also takes into account the influence of environment.
D
Human skin colour is classic example for this.

✓

Answer

Correct option: B.

In polygenic traits a single gene can exhibit multiple phenotypic expressions.

(B)
A single gene can exhibit multiple phenotypic expression. Such a gene is called a pleiotropic gene.

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