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AP Biology
Unit 1 – Chemistry of Life
Topic 1.5
DNA forms a ladder-like structure, where the backbone is comprised of phosphates and sugars. The nitrogenous bases connect together as the "rungs" of the ladder. In these rungs, __ binds with thymine using __ hydrogen bonds.
Guanine, 2
Adenine, 3
Adenine, 2
Cytosine, 2
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AP Biology - 1.5 Structure and Function of Biological Macromolecules
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DNA
Phosphates
Sugars
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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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