Question

Stabilizing selective pressures result in _______.. a.. rapid, broad evolutionary changes. b.. limited evolutionary changes. c.. an increase in genetic diversity. d.. extreme gene distributions. . Directional selection can be distinguished from disruptive selection by _______.. a.. the elimination of extreme variations of traits. b.. selection for two extreme variations of a trait. c.. the preservation of gene frequencies. d.. selection for one extreme variation of a trait

Answer 1

Stabilizing selective pressures result in limited evolutionary changes.

This is because theres no adition of new evolution things to adapt and no need of change things.

Directional selection can be distinguished from disruptive selection by selection for one extreme variation of a trait.

Directional selection or positive selection is the random selection of an allele over other one to the same trait.

Answer 2

Stabilizing selection is one classification of natural selection which results to decrease in genetic diversity and stabilization of population traits through time. The answer in 1 is B. The difference between directional selection can be from disruptive selection is the genetic variance shifts toward a new phenotype Answer in 2 is D.