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(Solved): 2. DNA. Compare A-form to B-form DNA. Look carefully at Fig. 4.13 in the textbook. [On www.rcsb.org ...
2. DNA. Compare A-form to B-form DNA. Look carefully at Fig. 4.13 in the textbook. [On www.rcsb.org, analyze PDB files I BNA and IDNZ.] A) Summarize the differences between A-and B-form DNA. B) Identify the form of the following double-stranded nucleic acids. [Write "A-form" or "B-form".] DNA-DNA in aqueous 10mMMgCl2(pH7) : DNA-DNA in ethanol: DNA-RNA hybrid in aqueous 10mMMgCl2 (pH 7): DNA-RNA in ethanol: C) What is supercoiling? Look carefully at Fig. 29.15. What are the definitions of linking number, twist, and writhe?