Question

Which of the following results in stabilizing selection in a population.
A. Founder's effect
B. Heterozygote advantage
C. Population bottleneck
D. Random mating
E. Reproductive isolation

Answer 1

Hint: Stabilizing selection is a type of natural selection in which the population means stabilizes on a particular non-extreme trait value.

Complete answer:
1: Heterozygote advantage means that the heterozygotes got advantage during the process of natural selection and results in a stable population.
2: The heterozygotes are more stable than that of the homozygous dominant traits and the
homozygous recessive traits. During the process of natural selection the chances of survival are more of heterozygotes as they have the advantage of existence more than both homozygous dominant and recessive.
3: Founders effect is described as when only small population is left from a large population
then the genetic variations of that species will be lost. And the genetic variation is less in that population.
4: Random mating is defined as when all the female gametes can mate with all the male gametes. Here female gametes have the opportunity to choose the male gamete with which it can fuse and form a new organism and new genetic material. It is occur in blister beetles
5: Reproductive isolation means the male of one species is always mate with the female of
that specific female. It prevents the mating of different species with each other. So that the
offspring produced by reproduction are of the same species.
Hence from the above detail knowledge we can conclude that the heterozygote advantage is
the result of stabilizing selection as it got benefit in the process of natural selection.

So, option B is correct.
Note:
In the process of natural selection only those species which are selected by nature and
which can easily survive in adverse conditions can survive other than that are removed from nature.