-
Which of the following is not true for a species?
-
- Members of a species can interbreed.
- Gene flow does not occur between the populations of a species.
- Each species is reproductively isolated from every other species.
- Variations occur among members of a species.
Correct Option: 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.
