Information obtained by Franklin from X-ray crystallography on DNA suggested that it is shaped like a
A. hollow cylinder.
B. pleated sheet.
C. icosahedron.
D. helix.
E. ribbon.
Answer: D
Biology & Microbiology
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A) A site B) P site C) E site D) exit tunnel E) directly to the cytosol
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Which substance would have the most difficulty entering a water lattice?
a. table salt (NaCl) b. a nonpolar molecule c. a sodium ion d. a proton (H+) e. an electron
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In terms of public health, the major lethal effect of smoking is ________
A) lung cancer B) oral-facial cancer C) peptic ulcers D) cardiovascular disease
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A. anabolism. B. catabolism. C. catalysis. D. dehydration. E. metabolism.
Biology & Microbiology