Why is genetic drift aptly named? Select True or False for each s...

Question

Why is genetic drift aptly named? Select True or False for each statement.

T/F It causes allele frequencies to drift up or down randomly.
T/F It occurs when alleles from one population drift into another.
T/F It occurs when mutations drift into a genome.

Accepted Answer

Hello everyone and welcome to today's video. Today we have that in a forest. There are 50 rabbits, Of which 35 had white fur and 15 had brown for an outbreak of disease. In rabbits resulted in the survival of only three rabbits all with Brown fur. Which of the following concepts does this process illustrate? So I want you to think about it in this way we have a certain decrease in the genetic variation of this population. Because we had a very genetically varied population with rabbits. They had white fur and rabbits that had brown fur. But now we only had rabbits with brown fur and we only have three of them. So the genetic variation of the rabbits definitely went down. So now why did it go down? Well, it was a natural phenomenon. And when a natural phenomenon such as a tornado, a hurricane or a disease results in a decrease in genetic variation. This is called the bottleneck effect and the bottleneck effect is actually a type of genetic drift. So the correct answer choice for this question is going to be answer choice. C genetic drift. I really hope this video helped you and I have to see you on the next one

Why is genetic drift aptly named? Select True or False for each statement. T/F It causes allele frequencies to drift up or down randomly. T/F It occurs when alleles from one population drift into another. T/F It occurs when mutations drift into a genome.

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