Mitotic phase Flashcards
-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?
-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
- Prophase
-what is it and what happens
-what happens to the nuclear membrane
-what do centrosomes do
-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
- Metaphase
-chromosomes are ______
-what do the sister chromatid pairs do
-where are centrosomes, and what do they form
-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
- 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
-split, chromatids seperate
-daughter chromosomes
-pull seperated chromosomes to opposite centrosomes
-uncoil their DNA
- Telophase
-where are the daughter chromosomes now, and what do they do here
-what happens to the spindle fibres, and what forms again?
-on opposite poles of the cell and lengthen to form chromatin (like original first cell)
-dissolve and a nuclear membrane forms again
Cytokinesis (known as what)
-in animal cells, what happens
-in plant cells, what happens
-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