AP BIOLOGY

EVOLUTION

DARWIN’S THEORY OF NATURAL SELECTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which best describes the purpose of mixing gene pools?
A
increases the number of organisms
B
promotes genetic variation
C
reduces genetic variation
Explanation: 

Detailed explanation-1: -Mixing gene pools to prevent inbreeding issues in translocated populations of clonal species.

Detailed explanation-2: -Sources of Genetic Variation Gene duplication, mutation, or other processes can produce new genes and alleles and increase genetic variation. New genetic variation can be created within generations in a population, so a population with rapid reproduction rates will probably have high genetic variation.

Detailed explanation-3: -A gene pool refers to the combination of all the genes (including alleles) present in a reproducing population or species. A large gene pool has extensive genomic diversity and is better able to withstand environmental challenges.

Detailed explanation-4: -Breeding in organisms of the same species leads to the transfer of genes to the offspring, which leads to variation. The distribution of these genes within a population depends on the gene pool. A gene pool refers to all genes within a population.

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