Which of the following statements are true about allopatric speciation?
I. Speciation isolates the population by geographic barriers
II. Physical isolation can emerge from animal and plant movements
III. Genetic divergence effects in reproductive compatibility
IV. It emerges only at the boundaries of the parent population
I and II
I and III
II and III
II and IV
Statement I and II are true about allopatric speciation
Geographical barriers play a role in allopatric speciation because they physically separate populations. Physical isolation can also emerge from animal and plant movements. Genetic drift may cause unintentional variations in gene pools.
Statement III and IV are wrong
Allopatric speciation does not take place at the boundaries of the parent population. Genetic divergence effects in reproductive incompatibility in allopatric speciation.
Hence, option 1 is the correct answer.