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Type: Multiple-Choice
Category: DNA, RNA, and Genetics
Level: Grade 7
Score: 1
Author: Saucesbi
Last Modified: 3 months ago

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DNA, RNA, and Genetics Question

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Grade 7 DNA, RNA, and Genetics

Each rung of the DNA ladder is made of
  1. a pair of nitrogen bases.
  2. a single nitrogen base.
  3. three nitrogen bases.
  4. four nitrogen bases.
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