From Wikipedia, the free encyclopedia. Werner syndrome ATP-dependent helicase also known as DNA helicase, RecQ-like type 3 is an enzyme that in humans is encoded by the WRN gene. WRN is a member of the RecQ Helicase family. Helicase enzymes generally unwind and separate double-stranded DNA. These activities are necessary before DNA can be copied in preparation for cell division (DNA replication).
James Cameron and 'MythBusters' Will Prove Rose Did Not Needlessly Let Jack Die in 'Titanic'. The director says it's not a question of room -- but that the plank wouldn't have stayed afloat under the weight of two people.
Dean had become the very last survivor of the Titanic when another woman who had been a baby on board, Barbara Dainton, from Cornwall, died in October 2007, aged 96. The last American survivor, Â­Lillian Asplund, had died aged 99 in 2006.