Guanine - Meaning, Definition & English Examples
Guanine is one of the four main nucleobases found in DNA and RNA. It pairs with cytosine and plays a key role in genetic coding and cellular function.
Definition:
A purine base found in DNA and RNA, pairing with cytosine in genetic coding.
Synonyms:
2-amino-6-oxypurine, G base, nucleobase
Part of Speech:
noun
Antonyms:
thymine, uracil
Common Collocations:
DNA structure, nucleotide pairing, genetic code, RNA synthesis
Derivatives:
guanosine, deoxyguanosine
Usage Tips:
Use "guanine" when discussing genetics or biochemistry; it pairs specifically with cytosine in nucleic acids.
Common Phrases:
guanine-cytosine pair, guanine quadruplex, guanine nucleotide
Etymology:
Derived from "guano," as it was first isolated from bird excrement in 1844.
Examples:
- 1. Guanine is a key component of DNA strands.
- 2. The scientist studied how guanine bonds with cytosine.
- 3. Mutations can alter the position of guanine in genes.
- 4. Guanine levels were measured in the lab experiment.