DNA Double Helices Are Soluble in Water but Insoluble in Alcohol.How

question 1

Multiple Choice

DNA double helices are soluble in water but insoluble in alcohol.How do these physical properties reflect the chemical structure of the molecule?

• A)The charged phosphate groups and sugars of DNA "like" to interact with polar water molecules.
• B)The purine and pyrimidine bases "like" to interact with polar water molecules.
• C)The 5 prime to 3 prime polarity of DNA make it soluble in water but not in alcohol.
• D)The charged R-groups of DNA "like" to interact with polar water molecules.

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