![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif) |
Home Educational Resources Talking Glossary
<< Back to the glossary
![Pronounciation of
guanine](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/Glossary/Pronounciation/guanine.gif)
defined: |
![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif) |
One of the four bases in DNA that make up the letters ATGC, guanine is the "G". The others are adenine, cytosine, and thymine. Guanine always pairs with cytosine.
|
explained: |
![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif) |
Listen to a detailed explanation. (Requires the free RealPlayer download)
Dr. Robert Nussbaum, formerly of the National Human Genome Research Institute's Laboratory of Genetic Disease Research, defines guanine.
|
illustrated: |
![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif) |
View illustration
|
related terms: |
![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif) |
base pair,
cytosine,
deoxyribonucleic acid (DNA),
ribonucleic acid (RNA),
protein,
genetic code (ATGC),
nucleotide,
uracil |
[ Send this term to a friend ]
[ Suggest a term for the glossary ]
|
|
![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif) |
![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif)
|
![](https://webarchive.library.unt.edu/eot2008/20090305005324im_/http://www.genome.gov/Images/spacer2.gif) |