Question

migration may enhance or blurr the effect of selection.comment

Answer 1

Here is your answer

Migration can enhance the process of natural selection by bringing in the alleles and traits within a population that are selected by nature. Hence, providing advantage to a particular group.

Migration can blur the effect of natural selection by removing the useful traits or genes from the population.

Answer 2

Migration

Explanation:

Migration may cause enrichment of the gene pool of such alleles that are being selected for, or blur the effects of selection through replenishment of alleles that were selected against by nature

• Migration is the movement of individuals from one place to another
• When movement of alleles takes place, gene frequencies change in the original as well as in the new population
• New genes or alleles are added to the new population and these are lost from the old population which will lead to a gene flow if this migration happens multiple times
• Immigration brings in those alleles which confer the traits that are not selected by nature and emigration may lead to removal of alleles that confer better adaptations