00:01
All right.
00:01
So this question is basically just asking us to do a diehybrid cross.
00:09
And so we have two individuals who are both heterozygous for the traits of having freckles and a widow's peak.
00:18
So having fricles is dominant to not having frickels.
00:23
And having a widow's peak is dominant to not having a widow's peak.
00:26
And so first we're going to cross both mom and dad.
00:31
To get the genotypes to put on to our punnet square.
00:36
And so if we do cross of mom first, we'll do every combination of all of her alleles.
00:41
So we get a big f, big r, and then a little f, little r right here.
00:48
And then a big f and a little r on the outside.
00:53
And then to the final cross, which is a little f and a big r.
00:56
And so we know dad is the same thing...