Mitotic phase Flashcards

1
Q

-How much % does this take
-what 2 phases taken place, and what exactly do they do
-what 4 phases does mitosis consist of?
-how is DNA arranged to prepared for motosis?

A

-10%
1. mitosis: division of genetic material in 4 stages
2. cytokinesis- division of cytoplasm and organelles into 2 identical cells
-Prophase, Metaphase, Anaphase, Telophase
-arrnaged in long strands of chromatin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  1. Prophase
    -what is it and what happens
    -what happens to the nuclear membrane
    -what do centrosomes do
A

-first phase of cell division where the sister chromatids from visibile by shorterning and thickening to form chromosomes
-dissapears
-centrosomes seperate and move to opposite poles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  1. Metaphase
    -chromosomes are ______
    -what do the sister chromatid pairs do
    -where are centrosomes, and what do they form
A

-visible
-they align themselves along the equatorial plate of the cell
-at opposite poles, the microtubules form spindle firbres which attach to the sister chromatids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  1. Anaphase
    -what happens to the centromeres and chromatids
    -what are the chromatids now called
    -what do the microtubules do
    -what do chromosomes start to do
A

-split, chromatids seperate
-daughter chromosomes
-pull seperated chromosomes to opposite centrosomes
-uncoil their DNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  1. Telophase
    -where are the daughter chromosomes now, and what do they do here
    -what happens to the spindle fibres, and what forms again?
A

-on opposite poles of the cell and lengthen to form chromatin (like original first cell)
-dissolve and a nuclear membrane forms again

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Cytokinesis (known as what)
-in animal cells, what happens
-in plant cells, what happens

A

-in animal cells,CLEVAGE FURROW: center pinches until cell becomes 2 equal halves
-in plant cells, CELL PLATE forms in the middle and moves outward ti form a cell wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly