Cell Division Flashcards
0
Q
Pro-Metaphase
A
- Nuclear envelope breaks down
- Chromosomes migrate
- MT attach to kinetochores
1
Q
Prophase Steps- Mitosis
A
- Chromosomes condense
- MTOC to poles
- Kinetochores assemble on centromeres
- Cytosolic MT breakdown
- Spindle formation
2
Q
Metaphase
A
- Chromosomes condensed
- Chromosomes line up on metaphase plate
- MT overlap is the same-> pushes centrosomes to poles with poly
3
Q
Anaphase
A
- Sister chromatids pulled to opposite poles
- Depoly at kinetochores-> ‘walking’ up MT
- Cleavage Furrow
4
Q
Telophase
A
- MT depoly
- Nuclei begin to form
- Chromosomes decondense
- Cleavage furrow deepens
5
Q
Cytokinesis
A
Cell Divides
6
Q
Leptotene
A
- Prophase 1
- Chromosomes condensing
- Attached to lamins
7
Q
Zygotene
A
-Prophase 1
-Homologous chromosomes pair
->Synaptonemal complex/tetrads form
‘Zips’ together
8
Q
Pachetyne
A
- Prophase 1
- Recombination/crossing over
- Chaismata form
- Chromosomes keep condensing
9
Q
Diplotene
A
-Prophase 1
-Further chromosome condensation
-Chaismata visible
-RNA synthesis at decondensation areas
Oocytes stay at this stage for years
10
Q
Diakinesis
A
- Prophase 1
- Chromosomes maximally condensed
- Nuclear envelope and Nucleolous disappear
