In DNA, cytosine pairs with guanine through three hydrogen bonds, forming a stable base pair. The sequence of these base pairs along the DNA strand encodes genetic information. During DNA replication, ...

Credit: Kateryna Kon/Science Photo Library/ What is DNA, and how does it work? You don't need a degree in ...

Chemical structure of guanine, showing its double-ring purine structure and the functional groups involved in hydrogen bonding with cytosine. (Image: Public Domain) Guanine has the chemical formula ...

it is found that only specific pairs of bases can bond together. These pairs are : adenine (purine) with thymine (pyrimidine), and guanine (purine) with cytosine (pyrimidine). In tfther words ...

Adjacent ribose nucleotide bases are chemically attached to one another in a chain via chemical bonds called phosphodiester ... adenine (A), cytosine (C), guanine (G), and uracil (U).