I guess I wasn't clear. I use/understand the PCR process.
What I meant is that with PCR it is now possible to utilize sequence variation among strains to identify specific pathogens. Thus- molecular biology meets microbiology.
Heck, I guess in that tac comes from microbes, in a way it is all microbiology.
Anyway, so what's this got to do with Xechem? I forget ;-)