00:01
So we're going to fill out a punnit square for these two people.
00:04
And we're looking at their blood types.
00:07
So for blood types, there are three annuals in the population.
00:10
A and b are dominant.
00:13
O is recessive.
00:15
And if you get a and b together, like jennifer does in this question, they are co -dominant.
00:20
So you get type ab.
00:22
You get both phenotypes.
00:24
Okay, so for punette square, we need to work out the genotypes of our individuals.
00:32
Jennifer is going to be ab.
00:35
So she has an a allele and a b allele.
00:37
Pete, because he has the recessive phenotype, is going to have two recessive alleles.
00:43
So the only way to be type o is to have two copies of the o allele.
00:47
Now let's fill out the punnet square...