AP BIOLOGY

EVOLUTION

EVOLUTION OF A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why would a population with a large amount of genetic variation be more likely to survive a severe climate change in its environment?
A
Individuals will only create offspring well-suited to the climate change
B
The individuals would produce more offspring
C
Individuals better suited to the new climate will help less-suited individuals survive
D
Some individuals will posses traits better suited to the new climate and be more likely to pass them on
Explanation: 

Detailed explanation-1: -Why would a population with a large amount of genetic variation be more likely to survive a severe climate change in its environment? Individuals will only create offspring well-suited to the climate change.

Detailed explanation-2: -Maintaining high genetic diversity allows species to adapt to future environmental changes and avoid inbreeding. Inbreeding, which happens when there are small, isolated populations, can reduce a species’ ability to survive and reproduce.

Detailed explanation-3: -Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).

Detailed explanation-4: -a population with a lot of genetic variation would likely have more phenotypic variation; therefore, such a population would more likely have individuals that can adapt to a changing environment. mutation can result in new alleles on chromosomes.

Detailed explanation-5: -Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.

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