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27 Απρ 2017 · Deoxyribose is the five-carbon sugar molecule that helps form the phosphate backbone of DNA molecules. DNA, or deoxyribonucleic acid is a polymer formed of many nucleic acids. Each nucleic acid is composed of a deoxyribose molecule bound to both a phosphate group and either a purine or a pyrimidine. Purines have two carbon and nitrogen rings ...
24 Σεπ 2018 · Figure 2 The carbon atoms in deoxyribose are numbered 1’ to 5’ chemical nature of the individual chains. Each is a copolymer composed alternately of phosphate groups and sugar units (Figure 1). The sugar units are pivotal to the chains, as the four nucleobases (or more simply bases),
13 Σεπ 2023 · Deoxyribose: It is a five-carbon sugar molecule that forms the backbone of the DNA strands. The deoxyribose sugar molecules are connected through a phosphodiester bond, creating a sugar-phosphate backbone.
21 Απρ 2024 · The three components of a deoxyribonucleotide are a five-carbon sugar called deoxyribose, a phosphate group, and a nitrogenous base, a nitrogen-containing ring structure that is responsible for complementary base pairing between nucleic acid strands (Figure \(\PageIndex{1}\)).
Scientists already knew that nucleotides contain the same three important components: a nitrogenous base, a deoxyribose (5-carbon sugar), and a phosphate group (Figure \(\PageIndex{2}\)). The nucleotide is named depending on the nitrogenous base: adenine (A), thymine (T), cytosine (C), and guanine (G).
Deoxyribose, or more precisely 2-deoxyribose, is a monosaccharide with idealized formula H− (C=O)− (CH 2)− (CHOH) 3 −H. Its name indicates that it is a deoxy sugar, meaning that it is derived from the sugar ribose by loss of a hydroxy group.
The diagram below shows a tiny bit of a DNA double helix. Figure 12.1.1: The double helical structure of DNA. The backbone of DNA is based on a repeated pattern of a sugar group and a phosphate group. The full name of DNA, deoxyribonucleic acid, because of the presence of sugar - deoxyribose.
