DNA double helices are soluble in water but insoluble in alcohol. How do these physical properties reflect the chemical structure of the DNA molecule?
A) The charged phosphate groups and sugars of DNA are hydrophilic.
B) The purine and pyrimidine bases are hydrophilic.
C) The 5 prime to 3 prime polarity of DNA makes it soluble in water but not in alcohol.
D) The charged R-groups of DNA are hydrophilic.
Correct Answer:
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