Sign up ×  First of all let me say that I'm not into Biology
myself... but I have a question for those of you who are.  From
what I've read, cancer is caused by 'faulty' DNA that behaves
abnormally. Mutations can occur for various reasons, ranging
from simple 'copying errors' to environmental factors.  I was
just wondering whether current research has dealt with storing
DNA of people or animals (e.g. rodents) and observing how it
changed, especially for cases where it eventually resulted in
cancer. Something along the lines of this, but I'd like to know
what research has actually been done so far.  share|improve this
question  2 Answers 2  up vote 3 down vote accepted  I tried to
comment but what I wrote is too long, so here it is as an answer
of sorts.  If I understand the question, you are asking: has
anyone done a prospective study where they store the DNA of
individuals and then later, when some of these individuals get
cancer, have a look for mutations that are associated with that
cancer. In fact this i