IN the nucleic acids, cytosine is ... This molecule crystallizes in hydrogen bonded pairs, as is commonly found for purines and pyrimidines, but the structure is unusual in that the two bases ...

This image depicts the chemical structure of cytosine. It shows a hexagonal ring with nitrogen atoms at positions 1 and 3, and a primary amine group attached to carbon 4. The two remaining positions ...

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 ...

There are four types of base - adenine, thymine, cytosine and guanine ... and inheritance What is DNA and how is the structure of this hereditary molecule responsible for its function?

How do we study the molecular structure of DNA ... adenine, guanine, cytosine, thymine, and uracil. (Where DNA uses thymine, ...

Among these mysteries are i-motifs, unusual knot-like DNA structures formed when cytosine-rich sequences ... especially under conditions like molecular crowding and DNA superhelicity.