Which one of the following is an example of a genetic bottleneck?

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

Stabilising selection

Genetic drift

Directional selection

Convergent evolution

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

A generational change in allele frequencies is known as genetic drift. In tiny populations, the frequency of a single allele might vary significantly just by chance.
Even while creatures do not travel from one location to another, occasionally their populations may experience dramatic declines.
Flooding, drought, or any other environmental change could be to blame for this. A random genetic sample of the original population may be made up of a few survivors.
The bottleneck effect refers to the changes and genetic variability loss that ensue.

Watch 3-min video & get full concept clarity