5. The mitotic cell cycle Flashcards
1
Q
describe the structure of a chromosome.
A
- DNA
- histone proteins
- sister chromatids
- centromere
- telomeres
2
Q
explain the importance of mitosis in the production of genetically identical daughter cells
A
- growth of multicellular organisms
- replacement of damaged or dead cells
- repair of tissues by cell replacement
- asexual reproduction
2
Q
outline the mitotic cell cycle
A
- interphase (growth in G1 and G2 phases and DNA replication in S phase)
- mitosis- PMAT
- cytokinesis
2
Q
role of telomeres
A
preventing the loss of genes from the ends of chromosomes during DNA replication
3
Q
formation of a tumour
A
uncontrolled cell division can result in the formation of a tumour.
4
Q
role of stem cells
A
cell replacement and tissue repair by mitosis
5
Q
interphase
A
6
Q
prophase
A
7
Q
metaphase
A
8
Q
anaphase
A
9
Q
telophase
A
10
Q
cytokinesis
A
