00:01
So the first one is this, this is from the inbreeding section of the textbook.
00:08
One minus one minus one half and that's raised to the t times one minus the initial level of inbreeding.
00:28
And then the other equation is the frequency and here we're interested in a equals q squared plus p q f and remember that during inbreeding you see a rise of homozygates and a decline in heterozygous and that's what this formula tells us so let's just go through this q squared we are told at least my interpretation is that q squared is one in 500 and that's of course is 0 .002.
01:05
Just do a little division.
01:07
And then if we take the square root of that, we know that q is 0 .045.
01:15
And because we're going to need p later on, remember that p plus q equals 1.
01:22
And so 1 minus q equals p.
01:31
And so that is 1 minus 0 .045, which is 0 .9.
01:41
5, 5.
01:43
All right, so that's some nice preliminaries.
01:45
So the first thing we're going to do is do this top equation here.
01:49
So we're looking at the imbreeding coefficient after 50 generations.
01:54
And so it's 1 minus 1 minus 1 half n.
02:02
And n is the population size and it's 100.
02:05
It's a small population.
02:08
And this is raised to t, which is 50 generations.
02:11
And then multiplied by 1 minus f sub 0, the original amount of imbreeding.
02:17
We are not told that there's any original level of imbreeding, so i'm just going to assume that it's zero...