The DNA molecule had a shape of a helix with a diameter of? A. 0.34 nm B. 2nm C. 34 A ° D. 4nm Right Answer: B. 2nm Share : December 26, 2017 Hassan Ali Biology Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -The oldest known fossils are?Wave of blood pressure or pulse due to heartbeat can be defected in?Permeability of gram negative bacteria is?