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2021-05-15

How does genetic variation affect the chance that a population will survive changing environmental?

How does genetic variation affect the chance that a population will survive changing environmental?

How does genetic variation affect the chance that a population will survive changing environmental conditions? The new population will have a smaller gene pool than the original population. It will have less genetic variation and will therefore be less likely to survive a change in the environment.

Why is it better to have a population that is genetically diverse?

Genetic diversity is important because it helps maintain the health of a population, by including alleles that may be valuable in resisting diseases, pests and other stresses. If the environment changes, a population that has a higher variability of alleles will be better able to evolve to adapt to the new environment.

What diversity increases the chances that individuals will possess favorable traits needed to survive changing environmental conditions?

Genetic diversity

What are benefits of variation?

Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.

Does natural selection depend on both inheritance and variation?

It depends on both inheritance and variation. It ensures that only the biggest and the strongest organisms survive. It explains how environments affect which organisms live and reproduce. It results in adaptations that improve an organism’s chances of survival.

What are two ways of measuring genetic variation in a population?

Relative genotype frequency and relative allele frequency are the most important measures of genetic variation. Relative genotype frequency is the percentage of individuals in a population that have a specific genotype. The relative genotype frequencies show the distribution of genetic variation in a population.