Question
I am doing a PCR for a random ssDNA library. Every-time I do the PCR I get a white precipitate in the bottom of the PCR tube even in the control tube. My PCR mix contains 500 uL master mix ...

Question
Hello, thank you for your time. How long do harmless microbes survive in the air? How far can they travel in the air? I ask in terms of one lone microbe, as well as a collective of microbes. If I need ...