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

Question

Responses

It shifts to the right and to the left.
It shifts to the right and to the left.

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

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

It shifts to the left.

Answer 1

The correct response is:

It shifts either to the right or to the left.

In directional selection, the curve representing the distribution of a trait shifts in one direction (either right or left), depending on which extreme of the trait is favored by selection.