what is speciation? Explain in brief the role of natural selection and genetic drift in this process
Answers
Answer:
If is the development of new species for the existing species is called speciation.
Genetic Drift
This change in frequency of some ge-
ans in the population which provide diversity without any survival advantages is called genetic Drift.
Natural selection
it is the selection by the nature .for example-: Green Bettles .
The origin of new species from pre-existing ones is called speciation.
the role of natural selection and genetic drift in speciation:-
Genetic drift is flow of genes from one population to another by chance factor or randomly. Over generation, it will accumulate different changes in different population.
In addition, natural selection operates differently in different population selecting the favorable feature in both the population.
Over a long period of time, the differences in the two population may become so drastic that they no longer reproduce with each other and thus give rise to new species.