Question

Which of the following is not true for a species ?

• A. Members of a species can interbreed
• B. Variations occurs among members of a species
• C. Each species is reproductively isolated from every other species
• D. Gene flow does not occur between the populations of a species

Answer 1

Answer: (D)

Gene flow does not occur between the populations of a species

Answer 2

Gene flow can and does occur between populations of the same species. Gene flow is the exchange of genetic material (such as alleles) between different populations within a species, and it helps maintain genetic diversity and the cohesion of a species over time. The other statements are generally true for a species: members of a species can interbreed, variations occur among members of a species, and each species is reproductively isolated from every other species.

So, the correct option is (D): Gene flow does not occur between the populations of a species