Question

Which of the following is not true for a species -

A

Members of a species can interbreed

B

Variations occur among members of a species

C

Gene flow does not occur between the populations of a species

D

Each species is reproductively isolated from

every other species.

Medium

Solution

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Correct option is C)

  • A species is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus.
  • Gene flow (gene migration) is the transfer of genetic variation from one population to another.
  • Gene flow can take place between two populations of the same species through migration and is mediated by reproduction and vertical gene transfer from parent to offspring.
  • Hence Gene flow does not occur between the populations of a species is a wrong statement.
  • So, the correct answer is 'Option C'.

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