Compare and contrast the terms in each of the following pairs:

f...

Question

Compare and contrast the terms in each of the following pairs:

founder effect and genetic bottleneck

Accepted Answer

Hello everyone and welcome to today's video. So the two mechanisms of genetic drift are the founder effect and the bottleneck effect, which of the following statements regarding these two mechanisms is going to be incorrect. So as we go over these statements, remember that we're looking for the false answer choice. Now let's begin by answer choice eight which states when a population size reduces for at least one generation population bottlenecks occur. This is going to be a true statement because that's what we call when the population size is going to be reduced population bottlenecks. And this is going to lead to just random changes to the all frequencies of the upcoming population due to this population bottlenecks. But since this is a correct statement, we're going to cancel it out. Moving on, we have the a founder effect occurs when a new colony is started by a few members of the original population. This is also going to be a true statement because the founder effect, which is, as the question says, a type of genetic drift involves the founding of a new colony from an original colony. And since this is going to be done by only a few members of the original colony. That means that the all frequencies are going to be different from the original colony leading to genetic drift. Since this is a true statement, we're going to cancel it out, then we have deep, which is that a tsunami is an example of the bottleneck effect. Well, the bottleneck effect refers to just a drastic event such as a tsunami, a volcano or a forest fire that is going to be leading to a drastic reduction or change in a leo frequencies. So yeah, a tsunami is definitely an example of the bottleneck effect. This is a true statement. So we're going to cancel it out and then we have C over hunting is an example of the founder effect. What remember from answer choice B that the founder effects involves the founding of a new population from an original population which is going to change the all frequencies of this new population. This is not really what happens when we're over hunting. Over hunting could even be considered a type of bottleneck because it, because it is going to drastically change the idea of frequencies of a certain population, but it is not really a founder effect. And because of this, we're going to be selecting answer choice C over hunting is an example of the founder effect as the final answer to a question, this is the incorrect statement. I really hope this video helped and I hope to see you on the next one.

Compare and contrast the terms in each of the following pairs: founder effect and genetic bottleneck

Key Concepts

Founder Effect

Genetic Bottleneck

Genetic Drift

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