Question

explain
i)genetic drift
ii)natural selection

Answer 1

1) The change in gene due to sudden accident in that of species.
2) The change in gene of some species due certain natural causes which gives them survival advantage.

Answer 2

(i) Genetic drift:- Variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
(ii) Natural selection :- The change in gene of the some species due certain natural causes which gives them survival advantages. The nature select the species is called natural selection.

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