|
Figure 3. Cycle of events leading to cell division is under strict genetic control. Resting cells are in the phase called Gap0 (G0). During this period cells cannot divide, but they can differentiate by maturing and taking on the functions of the mature cell type. When cells receive external cues to divide they enter the cycle at the Gap1 (G1) phase. During G1, cells manufacture cellular components, such as RNA and proteins, in preparation for division. After a time, the cells enter the Synthesis (S) phase in which the cell's DNA is duplicated. During the next phase, Gap2 (G2), the cell continues to manufacture proteins and RNA. This web site is a breath of fresh air in a world of pollution.
|
This web site is Copyright © 2004 by Karl Loren. Permission is granted to download, copy, distribute and use as long as the copyright notice remains attached to such use and the intended meaning is not altered.
