Animal Cell Mitosis— Whitefish Blastula Plant Cell...

Animal Cell Mitosis— Whitefish Blastula Plant Cell Mitosis— Onion Root Tip Image 1 Image 5 Cell cycle stage: Cell cycle stage: Image 2 Image 6 Cell cycle stage: Cell cycle stage: Image 3 Image 7 Cell cycle stage: Cell cycle stage: Image 4 Image 8 Cell cycle stage: Cell cycle stage:

Transcript

00:01 So this question is to identify the cell cycle stage of mitosis in animal cell, whitefish blastula, and plant cell onion root tip.

00:11 So i'm going to start out from animal cell.

00:16 So image number one, two partially attached cells with chromosome in each of the cell.

00:27 So this is a telephase of mitosis.

00:33 This is the last stage of mitosis because cystocromatid already separated into chromatose.

00:38 Into the opposite pole of the cell, and then also telephics is accompanied by cytokinesis.

00:46 So what is cytokinesis? this is the division of cytoplasm.

00:50 So when dna are being separated into two -daughter cell, obviously the cytoplasm also has to be separated.

00:56 So cytokinesis is the process that the parental cell is being cleaved into two -daughter cell by cleavage furrow.

01:05 So the physical separation of the daughter cells.

01:07 So obviously stage, image number one is teleface.

01:14 So let's move on to second.

01:16 Second image is a single cell with a chromosome lining up in the middle.

01:25 And you can see somewhat the metatoc spindle shooting out from the opposite pole of the cell.

01:32 So this is a typical metaphase.

01:36 The signature feature of metaphase is that the chromosome is lining up in the middle of the cell and then a heart extenal is reaching out, try to grab the centrum year of the centrum year of the chromosome so that the chromosome are being balanced in the middle of the cell.

01:54 Move on.

01:56 Image number three is a cell, and you can see that there's a nucleus, but it looks like it's partially breakdown, and then you have some condensed structure inside of the nucleus.

02:10 So this is the prophase.

02:14 So, prophes is the first stage of mitosis.

02:17 So during prophase, the nuclear envelopes start to break down, so it's not complete anymore.

02:22 And the loosely, you know, recid chromatin has become more condensed, that it becomes chromosome.

02:30 So profus is during this very first stage of mitosis, and that's the signature feature of prophase.

02:40 Number four, image.

02:42 So again, single cell, you can see.

02:45 That the chromosome are being pulled away from the center by mytotic spindle.

02:53 And this is a typical anaphaease cell...

Question

Animal Cell Mitosis— Whitefish Blastula Plant Cell Mitosis— Onion Root Tip Image 1 Image 5 Cell cycle stage: Cell cycle stage: Image 2 Image 6 Cell cycle stage: Cell cycle stage: Image 3 Image 7 Cell cycle stage: Cell cycle stage: Image 4 Image 8 Cell cycle stage: Cell cycle stage:

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