Question

Following is the diagrammatic representation of the operation of natural selection on different traits. Which among the following options correctly identifies all the three graphs A, B and C.

• A. A - Directional; B - Stabilizing; C - Disruptive
• B. A - Stabilizing; B - Directional; C - Disruptive
• C. A - Disruptive; B - Stabilizing; C -Directional;
• D. A - Directional; B - Disruptive; C - Stabilizing;

Answer 1

The correct option is B A - Stabilizing; B - Directional; C - Disruptive

$\to$ Stabilizing selection favours average sized individuals while eliminates small sized individuals

$\to$ In directional selection, the population changes towards a particular direction.

$\to$ Disruptive selection favours both small and large sized individuals.