There Can Be Only One!

In graduate school I used to sometimes go by the nickname "The Highlander". It wasn't a name I gave to myself, it was given to me ... I mean really, who gives themselves that sort of nickname? At any rate, I received that nickname because when I used to do transformations, sometimes I'd wind up with one colony ... which happened to contain the exact product I needed, or if I screened multiple clones they'd all fail except for one ... which happened to contain the exact product I needed. If it had happened once, no big deal ... but I seemed to have had a penchant for pulling that one clone trick multiple times.Nice to see I haven't lost my touch.