Which of the following is not true for a species -
Members of a species can interbreed
Variations occur among members of a species
Gene flow does not occur between the populations of a species
Each species is reproductively isolated from every other species.
A
Each species is reproductively isolated from every other species.
B
Members of a species can interbreed
C
Variations occur among members of a species
D
Gene flow does not occur between the populations of a species
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Solution
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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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