What change is observed in a distribution curve for a trait affected by directional selection?(1 point)

Question

Responses

It shifts to the left.
It shifts to the left.

It shifts either to the right or to the left.
It shifts either to the right or to the left.

It shifts to the right.
It shifts to the right.

It shifts to the right and to the left.

Answer 1

In the case of directional selection, the distribution curve for a trait shifts in one direction (either towards the right or towards the left) based on which extreme of the trait is favored by natural selection. Therefore, the correct response is:

It shifts either to the right or to the left.