e.g., After a first division (takes ~90 min) in Xenopus egg, the next 11 divisions occur synchronously (~30 min intervals), producing ~4096 (212) cells within 7 hr Each cycle is divided into S and M phases, without detectable G1 and G2 phases
The Cell Cycle cell cycle control system, which is similar to a clock Figure 12.14 Control system G 2 checkpoint M checkpoint G 1 checkpoint G1G1 S G2G2 M
Memiliki check point yang spesifik cell cycle akan berhenti sampai ada sinyal untuk lanjut G 1 checkpoint G1G1 G1G1 G0G0 (a) If a cell receives a go-ahead signal at the G 1 checkpoint, the cell continues on in the cell cycle. (b) If a cell does not receive a go-ahead signal at the G 1 checkpoint, the cell exits the cell cycle and goes into G 0, a nondividing state. Figure 12.15 A, B
Your consent to our cookies if you continue to use this website.