With stabilizing selection, the middle trait is selected for and all others are selected against.

PATTERNS OF EVOLUTION

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	True
B	False

Explanation:

Detailed explanation-1: -Stabilizing selection results in a decrease of a population ‘s genetic variance when natural selection favors an average phenotype and selects against extreme variations. In directional selection, a population’s genetic variance shifts toward a new phenotype when exposed to environmental changes.

Detailed explanation-2: -Stabilizing selection favors the middle phenotype, causing the decline in variation in a population over time.

Detailed explanation-3: -Stabilizing selection selects against individuals with extreme traits and favors individuals with average traits. Stabilizing selection drives the population towards average traits. The phenotypic distribution of traits under stabilizing selection shows a narrow bell-shaped curve.

There is 1 question to complete.