Adenine (A)
Definition
Adenine is one of the four nitrogenous bases found in DNA and RNA molecules. In DNA, it pairs with thymine (T), while in RNA it pairs with uracil (U).
Related terms
Thymine (T): The nitrogenous base that pairs with adenine in DNA.
Uracil (U): The nitrogenous base that replaces thymine in RNA and pairs with adenine.
Base Pairing Rule: The rule stating that cytosine pairs with guanine and adenine pairs with thymine or uracil depending on whether the molecule is DNA or RNA.
"Adenine (A)" appears in:
Study guides (2)
AP Biology - 1.5 Structure and Function of Biological Macromolecules
AP Biology - 1.6 Nucleic Acids
Are you a college student?
Study guides for the entire semester
200k practice questions
Glossary of 50k key terms - memorize important vocab
About Us
About Fiveable
Blog
Careers
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Cram Events
Merch Shop
Crisis Text Line
Help Center
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
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Cram Events
Merch Shop
Crisis Text Line
Help Center
© 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.