Question

List four factors that could lead to speciation. Which of them cannot be a major factor in the speciation of a self-pollinating plant species?. Give reason to justify your answer.

Answer 1

Following are the factors responsible for speciation:-

1. Genetic drift

2. Natural selection

3. Reproductive isolation

4. Geographical isolation

Reproductive isolation is not a major factor in the speciation of a self-pollinating plant species because reproductive isolation refers to the absence of other reproductively compatible plants in the same area. A self-pollinating plant species is not dependent on other compatible plants for pollen transfer.