All of the Following Statements Regarding the Watson-Crick B Form

Multiple Choice

All of the following statements regarding the Watson-Crick B form of DNA are true EXCEPT

A) two chains are coiled around a common axis forming a right-handed helix.
B) there are 10 base pairs per turn.
C) the bases are found on the outside of the helix and the sugar phosphate backbone on the inside.
D) the two chains run in opposite directions.
E) adenine is always paired with thymine, guanine with cytosine.