New species may be formed if:

i. DNA undergoes significant changes in germ cells

ii. There is no change in the genetic material

iii. Change in number of chromosomes

iv. Mating does not take place

The process by which new species develops from the pre-existing species is called speciation. If DNA undergoes significant changes (mutation) in germ cells, it may result into formation of a new kind of species. A change in number of chromosomes will give rise to a new genetic constitution of an organism, leading to speciation. The lack of mating and no change in genetic material does not result in speciation.