Can adaptations result from genetic drift?

Answer 1

No

Adaption is defined as, "a change or the process of change by which an organism or species becomes better suited to its environment." Genetic drift, on the other hand, refers to the variation of alleles in a gene pool over time and is based solely on random chance events. If this change were to be considered an adaptation it could not be considered a result of genetic drift alone as the fact that this mutation made the organism better suited for its environment means that there would have been some sort of selective pressure.

Essentially, if it can be considered an adaptation it means that the loss of the less desirable allele could not happen out of chance alone as some of these alleles would be removed via natural selection as well.

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Answer 2

Yes, adaptations can result from genetic drift, although it is a random process and may not always lead to beneficial adaptations.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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