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Type: Multiple-Choice
Category: DNA, RNA, and Genetics
Level: Grade 11
Author: Kim_Possible
Last Modified: 6 years ago

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DNA, RNA, and Genetics Question

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Grade 11 DNA, RNA, and Genetics

What two bases are purines?
  1. adenine and thymine
  2. cytosine and thymine
  3. guanine and cytosine
  4. adenine and guanine