How do natural disasters contribute to genetic drift?

1 Answer
Feb 28, 2017

Answer:

  1. genetic drift means chance elimination of gene of trait when a section of population dies of natural calamity.

Explanation:

  • Example:In case of snowstrom ,the induviduals having allelas that provide resistance to cold survive ,whereas others die.It eliminates certain alleles and fixes other alleles ,thereby reducing genetic variability of the population .