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
Correct Answer: D
Solution :
Gene flow means the spread of genes through populations as affected by movements of individual and their propagules e.g., Spores, seeds 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 pre-requisite for the formation of new species.
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