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

Question

Responses

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 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 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, one extreme phenotype is favored over others, causing the distribution curve for the trait to shift towards that extreme. This shift can happen in either direction (right or left) depending on which phenotype is being favored.