Question

Transfer of gene between populations that differ genetically from one another is called___
a)Gene mutation
b)gene flow
c) genetic drift
d)genetic recombination

Answer 1

The correct answer is the option B - Gene Flow.

In population genetics, gene flow, also known as 'Gene migration' is a movement in which the genetic material is carried from one population to another.

The genetic material is introduced from 1 population into another population of a similar or different species via the method of interbreeding. Thus, the composition of the gene pool will be changed in the receiving population.

Gene flow can occur by many different kinds of events, like blowing away of the pollen to a new destination, interbreeding of new animal species, or with people moving to new and different countries. If the gene versions are being carried to a place or to a population where these gene versions did not exist previously, the gene flow will become an important source of genetic variation.