00:01
About the genotype of this cross heterozygous r and heterozygous s, and also what the ratio they occur.
00:09
So for this one, we just have to do r plus n squared.
00:17
So you can see that each parent will produce four different gametes.
00:25
Let's just say gametes that produce.
00:35
According to the law of segregation and independent sormann, the two allele of the same gene separate and assort with the other gene independently.
00:44
So capital r assort with capital s, capital r lower s, lower r capital s, lower r and lower s.
00:54
So each of them is one fourth of a total.
00:57
So one fourth of each.
00:59
Now the other parents are the same as the first one.
01:02
So each of the parents produce the same four gametes.
01:05
So let's do this punnett square.
01:09
And this is the 16 punnett square where you have four gametes from each parent.
01:27
Now you put one parent's gametes on top and other gametes on the side.
01:36
And then there are actually the same four.
01:40
And then i put the two alleles back together.
01:44
I'm going to finish this punny square for you.
02:44
So this is the genotype of their offspring...