Question

Seven different populations exist in a community which show genetic similarities.

Genes of population 1 are shared only with population 2.

Genes of population 2 are shared only with population 1.
No gene flow occurs for population 3.

Genes of population 4 are shared only with population 5.

Genes of population 5 are shared with population 4, 6 and 7.

Genes of population 6 are shared with population 5 and 7.

Genes of population 7 are shared with population 5 and 6.
With the change in the environment, the population most likely to evolve would be

• A. Populations 1 and 2
• B. Population 3
• C. Population 4
• D. Population 5
• E. Populations 6 and 7

Answer 1

Answer: (D)

Population 5

Evolution is the gradual change in inherited characters of organisms over the successive generation and thereby generating variations at each level of biological organization. Genetic diversity is the main requisite for evolution as natural selection works on genetic diversity and favor the traits which make the individual more fit in terms of reproduction and survival. Among the seven populations, population 5 shared gene with three different populations and therefore, will exhibit more genetic diversity for natural selection to work on.

Therefore, the correct answer is option D.