Tsütosiinide

Tsütosiinide is a term used in Estonian to refer to cytosines. Cytosine is one of the four main bases found in DNA and RNA, alongside adenine, guanine, and thymine (in DNA) or uracil (in RNA). It is a pyrimidine derivative, meaning it has a heterocyclic aromatic organic compound structure with two nitrogen atoms at positions 1 and 3 of the six-member ring. In DNA, cytosine typically pairs with guanine through hydrogen bonds. This specific pairing is crucial for the structural integrity and replication of the genetic material. The sequence of these bases along the DNA molecule encodes the genetic information that determines the characteristics of living organisms. Cytosine plays a vital role in processes such as DNA replication, transcription, and translation. Its presence and proper function are essential for all known forms of life.