Which Event is the Most Direct (Or First) Result of Natural

Question

Which event is the most direct (or first) result of natural selection on a population?
A) New alleles are created when confronted with a new environment.
B) Proteins lose some functions.
C) The frequency of some alleles changes in the population.
D) Members of the population start reproducing more rapidly.

Accepted Answer

Natural selection acts on the variation present in a population, leading to changes in the frequency of certain advantageous alleles over time. This is the most direct and immediate result of natural selection on a population, as it involves changing the genetic makeup of the population itself. Options A, B, and D may occur as consequential effects of natural selection, but they are not the most direct or first result.