wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What is the major effect of genetic drift?


Open in App
Solution

Genetic drift :

  1. Genetic drift is a mechanism by which evolution develops over generations.
  2. Genetic drift occurs due to changes in allele frequencies of a population that occurs by chance.

The major effect of genetic drift is the Bottleneck effect :

  1. The phenomenon of reducing the size of a population is termed a bottleneck effect.
  2. It occurs due to catastrophic environmental events, hunting of particular species that are near to extinction, and destruction of habitat.
  3. This reduces the size of the population very quickly and genetic variability also.

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Heredity
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon