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  1. Guanine - Wikipedia

    Guanine ... Guanine (/ ˈɡwɑːniːn / ⓘ) (symbol G or Gua) is one of the four main nucleotide bases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine …

  2. Guanine | Base Pairing, Nucleobase, DNA | Britannica

    It is a component of nucleic acids, the cell constituents that store and transmit hereditary traits. Guanine was first discovered in guano in 1846 and was isolated in 1891 from nucleic acids …

  3. Guanine - National Human Genome Research Institute

    2 days ago · Guanine (G) is one of the four nucleotide bases in DNA, with the other three being adenine (A), cytosine (C) and thymine (T). Within a double-stranded DNA molecule, guanine …

  4. The Guanine Structure and Its Function in DNA - Biology Insights

    Jul 26, 2025 · Guanine is a fundamental component of genetic material, one of the four nucleobases that form the alphabet of life. It plays a role in storing and transmitting genetic …

  5. Guanine 98 73-40-5 - MilliporeSigma

    Adenine, cytosine, thymine and guanine are the four main nucleobases found in nucleic acids DNA and RNA. Guanine is a purine derivative. It is reported to assemble into square-planar …

  6. Guanine - New World Encyclopedia

    Guanine, a two-ring molecular structure, is one of the five defining components or nucleobases found in the nucleic acids DNA and RNA; the others being adenine, cytosine, thymine, and uracil.

  7. GUANINE Definition & Meaning - Merriam-Webster

    The meaning of GUANINE is a purine base C5H5N5O that codes genetic information in the polynucleotide chain of DNA or RNA.

  8. Guanine (G) - Essential Nucleobase in DNA and RNA Functions

    Guanine is a crucial nucleobase in DNA and RNA, forming stable base pairs with cytosine and playing key roles in genetic information storage, gene regulation, and energy metabolism.

  9. Guanine Definition - General Biology I Key Term | Fiveable

    Guanine is one of the four primary nitrogenous bases found in nucleic acids, specifically DNA and RNA. It plays a critical role in the storage and transmission of genetic information and pairs …

  10. Definition of guanine - NCI Dictionary of Cancer Terms

    guanine (GWAH-neen) A chemical compound that is used to make one of the building blocks of DNA and RNA. It is a type of purine.