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.
Men in third class experienced the largest fatality rate. Only about 20% of men on the ship itself survived, and of the 1,517 fatalities on the ship, 1,347 were men. Most of the crew was also lost during the sinking of the Titanic. Out of the 899 crew members on board, 685 went down with the ship. Titanic survivors were mostly men and women. About 74% of the women survived as did about 52% of the children. All the children from first and second class survived, while most of the loss of child life came from third class. The Titanic had the capacity to hold 32 lifeboats, but this was not mandatory under maritime law of the time.