What change is observed in a distribution curve for a trait affected by directional selection?(1 point)
It shifts to the left.
It shifts to the right.
It shifts to the right and the left.
It shifts either to the right or to the left.
2 answers
It shifts to the right or the left because this is directional selection. It could go either way
depending on which direction the selection is acting. If the selection is favoring individuals with higher values of the trait, the curve will shift to the right. On the other hand, if the selection is favoring individuals with lower values of the trait, the curve will shift to the left.