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 structure an overview the dna structure consists of two chainlike molecules polynucleotides that twist around each other to form the classic double helix the cell s machinery forms polynucleotide chains by linking together four nucleotidesthat form the strands of the dna structure are complex molecules which consist of both a phosphate moiety and a nucleobase adenine guanine cytosine or thymine joined to a five carbon sugar deoxyribose in rna the five carbon sugar ribose replaces deoxyriboseucleotides that form the strands of the dna structure are complex molecules which consist of both a phosphate moiety and a nucleobase adenine guanine cytosine or thymine joined to a five carbon sugar deoxyribose