Showing posts with label hormone. Show all posts
Showing posts with label hormone. Show all posts

Friday, July 6, 2012

Choosing negative control of cell division: one of the major cause of problems in animal system




Some weeks back when we were discussing about cell division and cancer we were comparing plant vs animal cell cycle and the interesting question came is “Why animals and plants chose different mode of controlling their cell division ?”.  I thought of sharing this with you in this post.
Plants normally do not die (premature death) out of inherent problems (defects in their own genes controlling cell cycle). Mostly their premature death is due to pathogens or stress which are external. In contrast, in animals including human one of the major cause of premature death is the cancer which is due to the defects in cell division control genes.  If we take an aerial view of this problem one thing is clear that plant cells are