List three main factors responsible for the speciation and briefly des

1.	List three main factors responsible for the speciation and briefly describe each of them.
Answer» Factors responsible for speciation : (i) Cene flow must be stopped so that sub-populations become genetically isolated. (ii) Mutation plays a role in speciation. Changes in allele and genotype frequencies within the populations, by natural selection. (iii) Genetic isolation leads to the formation of new species. (iv) Geographical barriers such as mountain ranges, seas or rivers may produce a barrier to gene flow and the inability of organisms or their gametes to meet leads to reproductive isolation and hence speciation. Sometimes crossing of two unrelated species (Genetic Engineering) can also lead to speciation.

List three main factors responsible for the speciation and briefly describe each of them.

Answer»

Factors responsible for speciation :

(i) Cene flow must be stopped so that sub-populations become genetically isolated.

(ii) Mutation plays a role in speciation. Changes in allele and genotype frequencies within the populations, by natural selection.

(iii) Genetic isolation leads to the formation of new species.

(iv) Geographical barriers such as mountain ranges, seas or rivers may produce a barrier to gene flow and the inability of organisms or their gametes to meet leads to reproductive isolation and hence speciation. Sometimes crossing of two unrelated species (Genetic Engineering) can also lead to speciation.

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