Definitions / Explanation : Genetic drift & Gene migration (gene flow)
It refers to chance elimination of the genes of certain traits independent of genes useful or harmful effects when a section of population migrates or dies of natural calamity. It alters the gene frequency of the remaining population.
- If the migrating individuals interbreed with the members of local population, these may bring many new alleles into the local pool of the host population. This is called gene migration.
This addition or removal of alleles when individuals enter or leave a population from another locality is called flow.
If gene migration happens multiple times, it would lead to
Hardy Weinberg equilibrium is affected by -
Factor affecting the Hardy-Weinberg principles are
$I.$ gene flow
$II.$ genetic drift
$III.$ mutation
$IV.$ genetic recombination
$V.$ natural selection
The correct combination is
The natural selection that acts against change in the form and keeps the population constant through the time is
Natural selection where more individuals acquire specific character value other than the mean character value, leads to: