A DNA nucleotide is composed of a ▸ View Available Hint(s) O ribose sugar, which is attached to a phosphate group, which is bonded to a nitrogenous base deoxyribose sugar, which is attached to a phosphate group, which is bonded to a nitrogenous base O ribose sugar, which is bonded to both a phosphate group and a nitrogenous base O deoxyribose sugar, which is bonded to a phosphate group and a nitrogenous base

Which of the following are important chemical considerations defining the structure and function of polynucleotides? Conformation of the hexose sugar Conformation of the glyostatic bond Tautomeric conformation of the base b and c a, b, and c

Which of the following is true of the molecule below? nucleotide 5' 3′ H₂C H₂C TNHNA O. HN CNH…NG NH O NH O HNU NH O CNHNG OHN nucleoside CH₂ CH₂ a purine pairs with a pyrimidine base the bases are held together by covalent bonds a nucleoside is made of the same components as a nucleotide The bases make up the backbone on the sides of the molecule

The number of hydrogen bonds between the two strands of a ds oligonucleotide given the following base pairs АТСТА TAGAT 7 13 11

The 2',3'-cyclic phosphodiester that is formed (Figure 26.7) when RNA is cleaved, forms a mixture of nucleotide 2'- and 3'-phosphates when it reacts with water. Propose a mechanism for this reaction.

Why do think nucleotides are also sometimes referred to as “bases” or “nucleotide bases”? What is the difference between a nucleotide and a nucleoside? Explain by giving an example, using structures. What kind of bond links a base to some sugar? Is the sugar an alpha or beta anomer? In what position(s) of the sugar does this occur? In what position(s) of the base does this occur? Instead of the term “Formation of a nucleoside”, what could the name of the reaction be? What functional group is being formed? Define the primary structure of DNA/RNA. Compare and contrast to the primary structure of proteins.

Place an asterisks (*) next to the 3' carbon atoms in the polynucleotide shown. -O CH₂ HOHDH Guanine -O-CH₂ H H H Thymine =P-O-CH₂ H OH Answer Bank H H Cytosine

The following is diagram of a generalized tetranucleotide. Carbons exist at corners on the shapes and phosphate groups are filled circles A. Suppose that one of the precursors for the tetranucleotide in the diagram was a 32P-labeled guanine nucleoside triphosphate (the innermost phosphate containing the radioactive phosphorus). Where is the radioactive phosphorus atom (i.e., one of the solid black balls) as it exists in the tetranucleotide B. If spleen diesterase (which induces breaks between the phosphate and the 5’ carbon) is used to digest the pictured tetranucleotide, state which base(s) among the breakdown products will be expected to be attached to the 32P.

团 X .. Structure and Nomenclature How many molecules of water were formed from the complex of the giver structure? Give ONLY the NUMBER of water molecules. Name the first nucleotide from the 3' to 5' end. Use the correct/appropriate punctuations, spacing and letter case based on the nomenclature. NH, N. to OP-0 OP- -0 O OH NH: NH; -0- NH NH, OP-O- OH OH 0P- 0 0=P-0- OH OH 1:52 pm O Type here to search 4) ENG 昆 11/10/2021

Which of the following combinations is nucleotide molecule?   The nitrogenous base uracil bonded to ribose and phosphate complemented with the addition of a water molecule   A nucleoside resulting from the dehydration reaction between two phosphates, glycerol, and an unsaturated fatty acid.   The DNA backbone consisting of three phosphate groups, a 5-carbon nitrogenous base, and a nitrogen-containing sugar residue   An ATP molecule is formed by combining adenine, ribose, and three inorganic phosphate groups