I am doing PCR with GJB2 Gene for human hearing loss. When i dilute the primer for the first time, it work only for 2 days, after it does not work?

I am doing PCR with GJB2 primer regarding hearing loss. When i dilute the primer for the first time from the stock, it works only for 2 days. After it it does not work even i dilute it again from...

08 February 2016 5,770 3 View