00:01
Okay, so you're going to answer this question.
00:01
Let's talk about the stages of mitosis.
00:04
Okay.
00:05
So remember that this is interface and you have here the m phase.
00:13
That is the mitosis process.
00:14
In interface, you have g1, you have s and you have the g2 phase.
00:18
In g1 and g2, there is going to be cell growth, a duplication of organelles, and so eventually that.
00:24
In the s phase, the most important or the important event here is going to be dna replication for your chromosomes.
00:32
So if your chromosome is normally like this, okay? after dna replication, you're going to have a chromosome that is like this because of dna replication.
00:46
Okay, this is a single chromosome and this is also a single chromosome, but with two sister chromatids.
00:51
Then in the end phase we're going to have prophase.
00:55
In prophyl where it's going to happen is that the chromosomes that are, for example, if this is the numbers of your cell, your chromosomes are like this, are going to be like this, like this, like this.
01:06
Okay, so in prophase, dna condensation is going to cure, so your chromosomes are going to condensate and they are going to become visible.
01:14
It means they are going to become like this.
01:22
Okay, like this.
01:25
This is where it's going to happen.
01:26
And also that nuclear membrane is going to disappear.
01:29
This is in prophase.
01:30
During metaphase, what is going to happen is that these two chromosomes, or practically all the chromosomes in your cell, are going to move to the middle of that cell.
01:40
And the mitotic spindle is going to be produced and it is going to attach chromosome by the kinetochore.
01:44
It means at this point here.
01:45
At this point and also at this point here.
01:48
Then we have an anna phase where the mitotic spindle is going to start to retract and it is going to move to the pole.
01:54
And it's going to drag one chromatid.
01:57
It means this chromosome is going to be split in this direction and also this chromosome the same.
02:02
So this arm here is going to move to one pole and this arm here is going to move to another pole.
02:08
Okay, and once these chromatids are separated, each of them is going to become a chromosome, because they are going to look like this.
02:17
And then during telophase, what is going to happen is that the chromosomes are going to arrive to the poles, and also the mitotic spindle is going to disappear.
02:26
And finally, we have cytokinesis.
02:29
Also remember that during telophase is going to, the chromosomes are going to decondense.
02:35
It means they are going to become, if this is the nucleus, they are going to become like.
02:39
Again and finally in cytokinesis cell division is going to occur where your whole cell is going to divide in two dollars cells this question says match each of the phases of interfacing mitosis with the cell activities listed it says should the best match answers can be used more than once it says dna replicates it says dna replicates so this is question number one dna replicates is going to be for ana phase, no, telophase, no interface.
03:16
Interface is the answer for this question...