Zusammenfassung der Ressource
Cell Growth Essay
- 4 stages
- G1 Phase
- Growth stage
- S Phase
- DNA replication
- G2 Phase
- Growth stage
- M Phase
- Mitosis & Cytokinesis
- 5 stages
- Checkpoints
- G1 checkpoint
- monitors cell size
- entry into S phase
- near end of phase
- G2 checkpoint
- monitors DNA replication
- end of G2
- entry into M phase
- using mitosis-promoting factor (MPF)
- M checkpoint
- monitors chromosome alignment
- at metaphase
- entry into anaphase- triggers
end of mitosis
- Regulatory proteins are responsible for
maintaining checkpoints