Figure 19-5
Use the figure to answer the corresponding question(s).
-The distribution of phenotypes for human birth weight is a good example of:
A) the founder effect.
B) genetic drift.
C) directional selection.
D) disruptive selection.
E) stabilizing selection.

Question

Figure 19-5
Use the figure to answer the corresponding question(s). 
-The distribution of phenotypes for human birth weight is a good example of:
A) the founder effect. 
B) genetic drift. 
C) directional selection. 
D) disruptive selection. 
E) stabilizing selection.

Quizplus · Accepted Answer

Human birth weight is an example of stabilizing selection, where extreme phenotypes (very low or very high birth weights) are selected against, and the average phenotype (moderate birth weight) is favored, leading to reduced variation around the mean.

Figure 19-5 Use the Figure to Answer the Corresponding Question(s)