The graph shows the distribution of a continuous trait in a population before (dashed) and after (solid) several generations of selection.
The shift shown from the dashed (before) to the solid (after) curve is most consistent with which mode of selection?
- Acheck_circle
Directional selection
- B
Disruptive selection
- C
Stabilizing selection
- D
Frequency-dependent selection
Explanation
The whole distribution shifted to one extreme (right) without splitting or narrowing, which is the signature of directional selection favoring one tail of the trait distribution.