This Technical Bulletin was prepared by members of the SSFI Plank-Platform Section. SSFI is a trade association comprising manufacturers of shoring, scaffolding, forming, suspended scaffolding, and planks-platforms. The institute. focuses on engineering and safety aspects of scope products.
The basic building block of DNA is the nucleotide. The nucleotide in DNA consists of a sugar (deoxyribose), one of four bases (cytosine (C), thymine (T), adenine (A), guanine (G)), and a phosphate.Cytosine and thymine are pyrimidine bases, while adenine and guanine are purine bases.The sugar and the base together are called a nucleoside.he nucleotide in DNA consists of a sugar (deoxyribose), one of four bases (cytosine (C), thymine (T), adenine (A), guanine (G)), and a phosphate.
DNA is composed of nucleotides bounded together by a backbone and connected at the center by hydrogen bonds. A nucleotide is made up of three parts: a phosphate group, a 5 carbon sugar (deoxyribose in DNA), and a nitrogenous base (adenin, thymine, guanine or cytosine).DNA is a nonparallel molecule, so the composition of the backbone is a combination of the phosphate and sugar molecule that composes the nucleotide.NA is composed of nucleotides bounded together by a backbone and connected at the center by hydrogen bonds. A nucleotide is made up of three parts: a phosphate group, a 5 carbon sugar (deoxyribose in DNA), and a nitrogenous base (adenin, thymine, guanine or cytosine).