3.7 mitosis Flashcards
1
Q
what are the products of mitosis?
A
2 genetically identical daughter cells
2
Q
name the 6 phases of the cell cycle.
A
- interphase
- prophase
- metaphase
- anaphase
- telophase
- cytokinesis
3
Q
interphase
A
replication of DNA
4
Q
prophase
A
- chromosomes unwind & thicken
- spindle fibres develop
- nuclear envelope breaks down
- chromosomes drawn towards equator
5
Q
metaphase
A
chromosomes arranged across the equator
6
Q
anaphase
A
sister chromatids pulled apart to opposite poles (with energy provided by mitochondria)
7
Q
telophase
A
- nuclear envelope reforms
- spindle fibres disintegrate
- chromosomes become indistinct
8
Q
cytokinesis
A
division of cytoplasm & cell membrane
9
Q
how do prokaryotic cells divide?
A
binary fission
10
Q
describe the process of binary fission.
A
1- circular dna replicates and attaches to cell membrane
2- plasmids replicate
3- cell membrane begin to grow and pinch inward -> cytoplasm divides
4- new cell wall forms and divides cell into daughter cells
