mitosis
- Created by: Margaret Hobart
- Created on: 02-05-21 14:34
View mindmap
- mitosis
- produces 2 daughter cells which are clones of parents and each other
- 1. interphase
- before mitosis starts
- 2. prophase
- chromosomes visible; centrioles move to poles; spindle fibres develop
- 3. metaphase
- chromosomes line up on equator; spindles attach to centromere
- 4. anaphase
- spindles pull chromotids apart; centromeres divide; move towards pole
- 5. telephase
- chromatids are at opposite poles; nuclear envelope develops
- 6. cytokenisis
- cytoplasm divides
- cancer
- normally when cells have divided enough times to make new cells they stop
- if there's a mutation in a gene that controls cell division, the cells grow out of control
- they form a tumour that invades surrounding tissue
- 2n = diploid
- n = haploid
- 2n during start of interphase and cytokenisis
- >2n during DNA replication (end of interphase)
- 4n during mitosis
Comments
No comments have yet been made