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What Is the Purpose of the Addition of Aqueous Ammonia

Question 18

Multiple Choice

What is the purpose of the addition of aqueous ammonia during the synthesis of DNA?


A) Cleavage of the ester bond to the silica support
B) Removal of the groups protecting the free amino group of the bases
C) Removal of the protecting group of the 5' -OH of the sugar
D) Ammonia accomplishes all of the above.

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