An enzyme that hydrolyzes DNA molecules in either the 5´ to 3´ or 3´ to 5´ direction. exportin. A receptor protein that recognizes nuclear export signals and directs transport from the nucleus to the cytosol. expression vector. A vector used to direct expression of a cloned DNA fragment in a host cell. extracellular matrix Five-Carbon Sugar and Nitrogen Base. Phosphate Group and Nitrogen Base. Five-Carbon Sugar and Phosphate Group. All components remain the same throughout the DNA structure? ... A five-carbon sugar found in DNA. answer choices . ribose. … The sugar is the 3' end, and the phosphate is the 5' end of each nucleiotide. The phosphate group attached to the 5' carbon of the sugar on one nucleotide forms an ester bond with the free ... In chemistry, a pentose is a monosaccharide (simple sugar) with five carbon atoms. The chemical formula of all pentoses is C 5 H 10 O 5, and their molecular weight is 150.13 g/mol.. Pentoses are very important in biochemistry. Ribose is a constituent of RNA, and the related molecule, deoxyribose, is a constituent of DNA. Phosphorylated pentoses are important products of the … Phosphate Group, Five Carbon Sugar, Nitrogenous Base 6. In messenger RNA, each codon specifies a particular Amino Acid 7. Before a cell divides, it must duplicate its own DNA in a process known as… DNA Replication 8. The genetic code in DNA depends upon the order or sequence of… Nitrogenous Bases 9. The base is attached to the 1′-carbon of the sugar by a β-N-glycosidic bond attached to nitrogen number 1 of the pyrimidine or number 9 of the purine. 3. A phosphate group, comprising one, two or three linked phosphate units attached to the 5′-carbon of the sugar. The phosphates are designated α, β and γ, with the α-phosphate being the ... Deoxyribose, which is a cyclic pentose (5-carbon sugar). Note: the sugar in RNA is a ribose. Carbons in the sugar are noted from 1' to 5'. A nitrogen atom from the nitrogenous base links to C1' (glycosidic link), and the phosphate links to C5' (ester link) to make the nucleotide. The nucleotide is therefore: phosphate - C5' sugar C1' - base. May 27, 2017 · Alternating sugar and phosphate residues results in one end of every DNA strand having a free phosphate group attached to the fifth carbon of a deoxyribose sugar. This is called the 5’ end. The other end has a reactive hydroxyl group attached to the third carbon atom of the sugar molecule and makes the 3’ end. A nucleotide is composed of three distinctive chemical sub-units: a five-carbon sugar molecule, a nucleobase—the two of which together are called a nucleoside—and one phosphate group.With all three joined, a nucleotide is also termed a "nucleoside monophosphate", "nucleoside diphosphate" or "nucleoside triphosphate", depending on how many phosphates make up the phosphate group. a sugar (in the case of DNA, deoxyribose), and; a ring of carbon and nitrogen atoms (the nitrogen can form a bond with hydrogen so the nucleotide is basic). A chain of nucleotides (nucleic acids) is formed by linking the phosphate group of one nucleotide to the sugar of an adjacent nucleotide. The bases stick out from the side of the phosphate ...