What happens when migration of a section of population to another place and population occurs?

What happens when migration of a section of population to another place and population occurs?
  1. Gene frequencies change in the original as well as in the new population
  2. Gene frequencies stay the same in both populations
  3. New genes/alleles are lost from both populations
  4. Mutation rate decreases in both populations

Solution

When migration of a section of population to another place and population occurs, gene frequencies change in the original as well as in the new population. New genes/alleles are added to the new population and these are lost from the old population.

Asked in: NCERT

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