00:01
That we're trying to determine who the parents are is has blood type o so that's going to be the recessive trait for blood type and it's going to be represented by these two lowercase eyes now we know mr.
00:11
Brown has type a b blood so he is going to have one allele for a and one allel for b but mrs.
00:21
Brown has type b blood she can either be homozygous or heterozygous for that b blood though if we look and see here, there's no way that mr.
00:32
Brown can give an o allele, that lowercase eye, so it cannot be either of them.
00:41
Now let's check out mr.
00:42
And mrs.
00:43
Smith here.
00:44
Mr.
00:45
Smith, again, is also type b blood, so we can either be homozygous or heterozygous.
00:50
Same thing with mrs.
00:52
Smith.
00:52
And what we see here, the way that we can possibly have a type o baby is if both parents are heterozygous for that b blood.
01:01
In that case, we have that one in four chance that the baby will have type o blood.
01:07
So that is, it is going to be mr.
01:10
And mrs.
01:11
Smith's baby.
01:13
Next question here.
01:16
Looking at an elderly couple died, someone shows up and says that they claiming a fortune.
01:23
The deceased couple were type a, b, and type o.
01:28
And the claim the person who is claiming is also type o.
01:34
So what is this possible? and in this case, if we put one of our parents up top, one of our parents on the side, and do our cross here, it is not possible to get the o blood type from that cross...