Question
what change is observed in a distribution curve for a trait affected by directional selection
it shifts either to the right or to the left
it shifts to the left
it shifts to the right and to the left
it shifts to the right
it shifts either to the right or to the left
it shifts to the left
it shifts to the right and to the left
it shifts to the right
Answers
GPT-4o mini
In a distribution curve for a trait affected by directional selection, the curve typically shifts to one side, either to the right or to the left.
To clarify further:
- If the trait is being favored in higher values (i.e., individuals with greater values of that trait have better fitness), the curve will shift to the right.
- Conversely, if lower values of the trait are favored, the curve will shift to the left.
So, the correct answer would be: **it shifts either to the right or to the left** depending on which phenotype is being favored by selection.
To clarify further:
- If the trait is being favored in higher values (i.e., individuals with greater values of that trait have better fitness), the curve will shift to the right.
- Conversely, if lower values of the trait are favored, the curve will shift to the left.
So, the correct answer would be: **it shifts either to the right or to the left** depending on which phenotype is being favored by selection.