The Structure of DNA - University of Arizona . This figure is a diagram of a short stretch of a DNA molecule which is unwound and flattened for clarity. The boxed area at the lower left encloses one nucleotide. Each nucleotide is itself make of three subunits: A five carbon sugar called deoxyribose (Labeled S)
DNA - structure - chemguide . 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, gives you the name of the sugar present - deoxyribose. Deoxyribose is a modified form of another sugar called ribose. I'm going to give you the structure of that first, because you will need it later anyway. DNA: Structure, Forms and Functions (With Diagram) . (ii) Pentose sugar, and (iii) Organic bases. (i) Phosphoric Acid: The phosphoric acid (H 3 P0 4) is biologi! cally called phosphate and it was discovered by Levene in 1910.Phosphoric acid (Fig. 10.1) has three reactive hydroxyl groups (—OH) of which two are involved in forming sugar phosphate backbone of both DNA and RNA. Nucleotide Structure: DNA Diagram Science Trends . Nucleotides are chemical compounds that form the basic structure of nucleic acids like RNA and DNA. The chemical structure of nucleotides is almost the same regardless of whether or not the nucleotide is an RNA or DNA nucleotide. Nucleotides are made out of elements like nitrogen and carbon with a nitrogenous base, a five-carbon sugar component, and a group of phosphates. DNA Model - BIOLOGY JUNCTION . The basic unit of structure for a DNA molecule is the nucleotide. A nucleotide is composed of a phosphate, a deoxyribose sugar molecule, and a nitrogen-containing base (A, T, C, or G). The instructions carried on DNA are used! to make proteins from amino acids in the cytoplasm.
