[Wonder Warthog]

"I agree, damage can occur by many mutagens long before the sample even reaches a microscope. That’s probably why it takes so long for the results. Tests need to be repeated until a consistant conclusion is achieved."

Uh, DNA Analysis has nothing to do with "microscopes". Results take a long time because there are not that many labs equipped and staffed to do the tests. I suggest a bit of self-education before posting next time.

[SouthDixie]

DNA was first isolated by the Swiss physician Friedrich Miescher who, in 1869, discovered a microscopic substance in the pus of discarded surgical bandages.

Aren't you a nasty piece of work so early in the morning...evidently you have never heard of an electron microscope.