Guanine: Structure and Function
- Guanine is a purine base with a double-ring structure.
- It pairs with cytosine in DNA and with cytosine in RNA through hydrogen bonding.
- Guanine is crucial for the genetic coding and functioning of cells.
Guanine in DNA and RNA
- In DNA, guanine forms base pairs with cytosine, contributing to the double-stranded structure of the DNA molecule.
- In RNA, guanine also pairs with cytosine, playing a key role in the transcription of genetic information from DNA to RNA.
Functions of Guanine
- Guanine is involved in the storage and transmission of genetic information.
- It plays a role in the synthesis of proteins through the genetic code carried by DNA and RNA.
- Guanine also participates in various cellular processes, such as cell signaling and energy transfer.
Key Takeaways
- Guanine is a purine base that pairs with cytosine in both DNA and RNA.
- It is essential for the genetic coding and functioning of cells.
- Guanine plays a crucial role in the storage and transmission of genetic information and the synthesis of proteins.
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