Which of the following will decrease the response of a trait to natural or artificial selection? which of the following will decrease the response of a trait to natural or artificial selection? increased narrow sense heritability (h2). greater selection strength (s). lower additive genetic variance (va). increased broad sense heritability (h2).

Lower additive genetic variance (VA)

Explanation:

The Increased narrow sense heritability (h2) will increase the additive genetic varience thus increasing response for natural selection, because,

h2 =

here,

VA = Additive genetic varience

VP = Phenotypic variation.

Similarly, the increase in the selection strength will increases the response of a trait to natural/artificial selection.

Thus, if additive genetic variance (i.e VA) is low, it decreases the response of trait for selection.

Hence, The correct option is Lower additive genetic variance (VA)

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