Rapid evolution or epigenetics? (Introduction)

by David Turell , Monday, March 14, 2011, 17:14 (5003 days ago) @ David Turell


> Yet you have made an amazing point: in histology I learned to identify organs by the microscopic slice. Liver cells don't look like kidney. Lung is nothing like an adrenal gland. Lymph nodes are not anything like skin cells. And the brain can only be brain, the spinal cord has its own pattern. The body IS a community of organs, all functioning in great cooperation. A community of communities, like London and its suburbs. But everyone of these cells has the same DNA! And George tells us it all came from inorganic chemicals that fell together by chance.-How epigenetics help the different kinds of cells (about 200) stay the same and maintain their identity:-http://www.the-scientist.com/article/display/58007/