Question

What are the four factors which lead to speciation? ( The first three are genetic drift, geographical isolation and variation due to natural selection. Which is the fourth one?

Answer 1

The process of formation of a new species by evolution or any genetic modification of the previously existing species in a population is called speciation.

The factors which lead to speciation are :-

a) Geographical isolation

b) Mutation or variation

c) Natural selection

d) Genetic drift