Question

According to Neo-Darwinism, natural selection operates through
A) Fighting between organisms
B) Killing the weaker organism
C) Differential reproduction
D) Variations

Answer 1

Hint:Among all organism species, variation occurs. This is partially because random mutations exist in the genome of a human organism, and those mutations can be inherited by their offspring.

Complete answer:
First we should know about natural selection to answer this question. The unequal survival and reproduction of organisms due to phenotypic variations is natural selection. The alteration in the heritable characteristics typical of a population over centuries is a central function of evolution. The word "natural selection" was popularised by Charles Darwin, comparing it with artificial selection, which is deliberate in his opinion, while natural selection is not.

Now, let us find the solution from the options-
- The word differential reproduction is often used to contrast the reproductive frequencies of two classes of individuals, each possessing a different genotype, of the same generation of a species.
- In Neo-Darwinism, this is often referred to as the evolution hypothesis of ‘new synthesis'
- It notes that natural selection is the mechanism by which individuals with genetic features best suited to their environments live and replicate for a long time to produce more offspring, while passing to the next generation the genes for certain desirable adaptations.
- Before they will replicate, persons without the desirable features have less odds of success, thereby eliminating their genetic material from the ongoing gene pool.

Thus, the correct answer is option (C) Differential reproduction.

Note:The phenotype, the traits of the organism that actually associate with the environment, works on natural selection, but the genetic origin of any phenotype that provides a reproductive benefit to that phenotype may become more popular throughout a population.