At 7/19/2012 10:01:45 PM, Lordknukle wrote:
At 7/18/2012 9:56:05 PM, Wnope wrote:
At 7/18/2012 8:27:00 PM, Lordknukle wrote:
At 7/18/2012 5:22:53 PM, TheOrator wrote:
At 7/13/2012 5:23:28 PM, Lordknukle wrote:
At 7/13/2012 5:09:39 PM, 1dustpelt wrote:
At 7/12/2012 2:53:30 PM, The_Fool_on_the_hill wrote:
The Fool: Not all mutation are advantagious.
This. And homosexuality is not evolution.
All mutations are a form of evolution.
Cancer is one hell of an evolution then
This was in reference to the mutations that occur due to natural selection- not ongoing human body processes.
Cancer mutations occur in sex cells along with somatic cells (sex cells being what is "selected").
Isn't cancer mostly environmental?
"Cancer" refers to nearly any mechanism that causes unregulated cell growth.
Environmental factors can mutate cells, but that rarely effects sex cells.
But an example of cancer that would: there is a specific mutation on a gene which makes it produce mutated "telomers," which are little strings at either end of a DNA strand. Every time a cell divides, a few telomers get cut off. After enough divisions that the telomers are all gone, the cell destroys itself.
Now, consider if a mutation were to STOP telomers from being removed after cellular division. The cells would keep dividing for no reason except to divide in a localized manner. You'd see lots of extra cells around (i.e. tumors) that indicate where the cancer is centralized.
Most "cures" for cancer focus largely on how, regardless of whether its environmental or largely genetic, involves targeting cells that are over-dividing REGARDLESS of the original mechanism.
As time goes on, the cures will be more and more specific for each mechanism.
But, for instance, environmental mutations could induce this telomer problem in somatic cells.