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Practice each question, then open the answer or worked solution.
What factors could lead to the rise of a new species?
Factors that would result in a new species are as follows:
(a) Mutation
(b) Genetic drift
(c) Natural selection
(d) Geographical isolation
(e) Generative isolation for prolonged periods
(f) Environmental factors on the isolated populations
(g) Quantum of genetic variant transmissible from one generation to the following generation
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
In the pollination of plant species, geographical isolation is usually not a major factor, as no new trait will become part of the genetic makeup of a self-pollinating plant species. However, there are some possibilities of some environmental changes which could result in some variations.
Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not?
In the case of asexually reproducing organisms, geographical isolation can’t be considered a factor. This is due to the fact that meiosis does not occur during asexual modes of reproduction.