00:01
Hi everyone, so the answer for our question here is actually b, and that is mutation and gene flow.
00:09
So remember, mutation is for sure one way that new genes can be introduced in a population, and so that is why that is correct.
00:24
And then the next part of our correct answer is gene flow, and that is, again, the physical movement of gametes and alleles from one population.
00:34
To another simply because the organism physically migrated there or left and went somewhere else.
00:42
So that is, again, gene flow.
00:47
And we can look at the wrong answers to see why they are incorrect as well.
00:53
So if we look at a, it says natural selection genetic drip.
00:59
So natural selection can only act on what is present...