All Subjects
Light
collapse
Practice Quizzes
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
Cytosine, 2
Adenine, 2
Adenine, 3
Related content
Practice quizzes
Practice this subject
Practice this unit
Practice this topic
Study guides (1)
AP Biology - 1.5 Structure and Function of Biological Macromolecules
Key terms
DNA
Phosphates
Sugars
About Us
About Fiveable
Blog
Careers
Testimonials
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
Report an Issue
Stay Connected
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
About Us
About Fiveable
Blog
Careers
Testimonials
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
Report an Issue
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
Back
Practice Quiz
Guides
Glossary
Guides
Glossary
Next