Multiple Choice
Purines differ from pyrimidines in that ________. (Select all that apply)
A) purines have a double ring structure while pyrimidines have a single ring structure
B) in DNA the purines include cytosine and uracil
C) in RNA the purines include cytosine and thymine
D) in both DNA and RNA the purines are adenine and guanine
Correct Answer:
Verified
Correct Answer:
Verified
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