The copying of DNA’s master instructions into messenger molecules of RNA, a process known as DNA transcription, has always been thought to be a unidirectional process whereby a copying machine starts and moves in one direction. But in work that represents a fundamental shift in scientists’ understanding of the phenomenon, MIT researchers have found evidence that two DNA copying machines frequently start from the same site and move in different directions.

Press release here


  1. #1 mo
    December 8, 2008

    woot. Can’t wait for it to get online on NCBI.
    or, as an alternative, I will get on the nerves of a liberian at my university. 🙂