Of the below which can be a reproductive isolating mechanism

Of the below, which can be a reproductive isolating mechanism leading to speciation?

geographic isolation

temporal isolation

a mutation in a single gene

all of the options

polyploidy

Solution

Answer= The reproductive isolating mechanism leading to speciation is

All of the options

Geographic isolation = in 1963 Ernst Mayr contended that speciation takes place through allopatry orgeographic isolation

geographic isolation is genetic divergence permitted by geographic isolation

Temporal isolation = is prezygotic isolating mechanism in which individuals from different species do not mate because they are active at different time of day or in different seasons

A mutation in single gene= geographic isolation is dependent on random mutation ,which accumulates steadily after a population has been subdivided into space