00:01
Okay, this question here says, the following are the various karyotypes among the organisms with the xy sex determination system.
00:07
You have x0, xxx, xxy, xyy, xx, and xy.
00:13
Why the karyotypes that are female in human, karyotypes that are male in human, and karyotypes that go through x chromosome malignactivation if these are human? so first, for this one here.
00:26
Remember that for a chiropractor to call for a male, you need the y chromosome.
00:33
So in this case you have no y chromosome, so this is going to be female.
00:39
And also remember that when you have more than one x chromosome, you're going to have x inactivation.
00:45
It means you're going to inactivate the remaining x chromosomes, randomly.
00:51
So in this case you're not going to inactivate any x chromosome because you have only one.
00:57
Ok, now let's go for a second.
01:02
The characters are female, human, amazing, human.
01:05
Ok, so the next possibility is going to be x, x, x.
01:10
So you have also zero or you don't have here a white chromosome.
01:14
So you have this is going to be female.
01:16
Now, are you going to inactivate x chromosomes? and the answer is yes.
01:20
How many? one and two.
01:22
So you have you're going to activate two chromosomes, two x chromosomes, because again you only need one...