CBSE Class 10 Answered

In self pollinated species, pollination is occuring on the same plant. Geographical isolation can occur only between different organisms. Hence it will not be a major factor for speciation.

Gographical isolation is not a major factor in the speciation of an organism that reproduces asexually since asexual reproduction does not require two organisms to reproduce. It involves only a single organism. Barriers can only form between different organisms. Moreover asexually reproducing organisms pass on the parental DNA to offspring which gives no chance of  speciation.Hence geographical isolation is not a major factor for speciation here.