Which of the Following Statements About Nucleic Acid Secondary Structure

question 18

Multiple Choice

Which of the following statements about nucleic acid secondary structure is FALSE?

• A) The width of the major and minor grooves is more equal in the A-from of DNA than in the B-form.
• B) Triple helices and G-quadruplexes can form at specific sequences in DNA.
• C) DNA can form cruciform structures at palindromic sequences.
• D) The A-form of DNA exists at high humidity, whereas the B-form exists at low humidity.
• E) Some nucleic acids can form a zig-zag structure or Z form.

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