Question

What mechanisem can cause genetic drift in a population?

Answer 1

$\huge\mathfrak\red{anSwer}$

⭕ Sudden change in the gene frequency is known as genetic drift.

●Situation First :

⭕ Green beetles got the survival advantage or they were naturally selected as they were not visible in the green bushes.

⭕ This natural selection is exerted by crows resulting in adaptation in the beetles to fit better in their environment.

●Situation Second:-

⭕ Blue beetles did not get survival advantage.Elephant suddenly caused major havoc in the beetles population otherwise their number would have been considerably large.

⭕ From this we conclude that accidents can change the frequency of some genes even if they do not get survival advantage.

$\huge\mathfrak\red{Thank You :)}$