NEETBiologyEvolutionMCQ+4 / −1
Which of the following is not true for a species ?
- AVariations occur among members of a species
- BGene flow does not occur between the populations of a species
- CEach species is reproductively isolated from every other species
- DMembers of a species can interbreed
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Correct answer: B
Gene flow is the spread of genes through populations as effected by movements of individual and their propagules, e.g. seeds spores etc. Gene flow ensures that all populations of a given species share a common gene pool. i.e. it reduces difference between populations. The interruption of gene flow between populations is a prerequisite for the formation of new species.
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