00:01
Okay, for this problem, we have two populations.
00:04
So we're going to do population a.
00:12
I'm going to call this one population b.
00:21
Okay, and the information we know about them is that population a here has 25 individuals, and their genotype all is homozygous dominant, so big a, big a, big a.
00:47
We have population b, which has 40 individuals, and their population's genotypes are all homocycous recessive, little a, little a.
01:06
They live a far distance away, but they do have similar environments.
01:24
So similar environmental pressures.
01:37
Okay, so if we look at what may be causing this genetic variation, while we have this result here.
01:53
One of our factors that changes genetic variation or evolution in a population that we can eliminate right off the bat is gene flow.
02:05
So because of this distance between them, we know that gene flow will not be a factor.
02:17
We're going to put an x the gene flow.
02:20
Because gene flow is the exchange of genes between two different populations.
02:24
That actually cause population to be more similar.
02:28
So we know we see that's not the reason we have these genotypes in the population...