Nucleosides are organic compounds that are the basic building blocks of DNA and RNA. They consist of a purine (adenine) or pyrimidine (thymine, uracil or cytosine) base linked to D-ribose (ribonucleic acid) or 2-deoxy-D-ribose. Nucleosides also contain phosphoric acid residues, which provide connections between nucleotides in a DNA or RNA chain.
Nucleosides perform an important function in biochemistry and genetics. They are involved in the synthesis of DNA and RNA, as well as in the transfer of genetic information during DNA replication. In addition, nucleosides play an important role in the functioning of the immune system, since they can be recognized and attacked by antibodies.
There are several types of nucleosides, including deoxyribonucleosides (DNA), ribonucleosides (RNA), and thymidine (thymidine monophosphate). Each type of nucleoside has its own structure and function in the cell. For example, DNA consists of two polynucleotide chains, each consisting of nucleotides containing adenine, guanine, cytosine and thymine. RNA also consists of a polynucleotide chain, but instead of thymine it contains uracil. Thymidine is a nucleoside that is used to synthesize DNA during the process of replication.
Nucleoside synthesis occurs in cells by a reaction between nucleophilic groups (such as nitrogen bases) and a five-carbon sugar (ribose or deoxyribose). This reaction produces nucleoside monophosphates, which then combine with other nucleoside monophosphates to form more
Nucleosides - Biochemistry
A nucleoside is a complex nitrogenous base with a carbohydrate and is called D-RNA, DNA, heterochromatic regions of heterochromatin. RNA contains 8 nuclear purines and nucleoproteins, and DNA contains 6 compounds. They are located in the same areas, but encode different information. Link to biochemistry of Varvarus: https://studfile.net/preview/9313090/page:5/
There are two purine bases - adenine (A) and guanine (G), two pi