00:01
In order to answer this question, let's talk about inheritance.
00:02
This question says, or well, it is talking about the a -b -o system.
00:06
So in this case, remember that, let's use the following nomegranateur, the a -a -l -l -a -l, and the o all -a -lis.
00:12
These are all -a -lis.
00:14
So a -n -b -b -a -o is possessive.
00:17
So when you have the homo -sigizagus -dominant or the heterocygytor -a -o, you're going to have blood type a.
00:23
If you have the homo -sigemocytitis -d -o, you're going to have blood type b.
00:28
If you have the heterocygose ab, as they are co -dominant, you're going to have blood type ab.
00:36
And when you have the homocylusisive, you're going to have blood type old.
00:42
Now, in this case, it says, question one or question three.
00:45
It says, a man has type b blood, specifically he is homocygose dominant, and he's married to a woman with blood type o.
00:55
It means like this.
00:57
And it says, what blood type will their children have? in this case, you don't even need to make up a square because this parent can only transmit the alleleys, and this parent can only transmit all alilis.
01:06
So the only possibility for their offspring are going to be heterocygoyal b.
01:10
That calls for blood type b.
01:12
So practically all of their children will have blood type b.
01:16
And this is the answer for question three.
01:19
Question four says a woman with blood type a, that is heterocygos, is married to a type b person that is also heterocygos.
01:28
What blood types will their children have? so in this case, we need to make up a panel square.
01:33
Okay, for you to see more clear these questions.
01:37
So you have here, b -o.
01:39
And if you solve your panel square, you're going to have heterozygoyote v -o, heterosigua, heterosaius a, and homozygous, recessive.
01:46
So, as you can see here, the blood types that their children are going to have are blood type ab, blood type b, blood type b, blood type a, and blood type o.
01:55
So practically, the four blood types for these a gene are going to be expressed from in from this cross.
02:02
So if you have a woman, in a man, or in general, two people that are heterocygos a and heterocygos b, then any blood type can arise from this cross in the children, okay? and also in the same proportions, because remember that in the four of them, in total is that 100%.
02:18
And as you have here one, two, and three, and four possibilities, then each of these boxes represents 25%, so you have 25 % for blood type ab, 25 % for 25 % for type b and 25 % for type a and 25 % for type o.
02:32
Question 5 says a woman with type a blood, it means like this, because you don't know if she is if she is homozygose dominant or heterocygose a .o.
02:42
So let's leave it like this.
02:43
It's claiming that a man with blood type a .b is the father of her child who is also type a .b.
02:51
Like this.
02:52
Okay.
02:53
Again, again, you have to remember that a person, any person, in her is one allil from each parent...