Jonathan Wright
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"If they do, they finish the ride then go to the back of their car and spit three times to dispel the bad luck," he says.
In the mid-1990s, University of Cambridge biochemists David Klenerman and Shankar Balasubramanian were trying to solve a fundamental problem: how to watch a single DNA polymerase molecule at work. Their approach used modified nucleotides, called reversible terminators, tagged with four different colors of fluorescent molecules. If one of these “terminators” was grabbed by the DNA polymerase and incorporated onto the replicating DNA strand, it would block the addition of any other bases until removed using a separate chemical reaction.,更多细节参见快连下载-Letsvpn下载
While Option.Arg returns a tuple of the value and an error,