Which of the following substances is involved in de novo synthesis of purine nucleotides but notpyrimidine nucleotides ()A, glutamine B, glutamate C, aspartic acid D, glycineWhat is wrong with the statement about the B-type DNA double helix model is that ()A, the base plane and the pentose plane are perpendicular to each otherB. The base plane is located outside the helixC. The two chains are stabilized by interbase hydrogen bondingD. is a right-handed spiral structureThe enzymes in common with the following enzymes that catalyze glycolysis and gluconeogenesisare ()A, hexokinase B, phosphoglycerate kinaseC, 1, 6-2p-fructokinase and D, pyruvate kinaseWhich of the following enzyme catalyzed reactions does not involve the production orconsumption of carbon dioxide ()A, pyruvate carboxylase B, isocitrate dehydrogenaseC, 6-P-gluconate dehydrogenase and D, succinate dehydrogenase

Metabolism is the sum total of all chemical transformations taking place within an organism. Most of…

Answered: Which of the following substances is…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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The single strand of DNA below forms a stem-loop structure structure with a loop that is 6 nucleotides long. 5’ - T A T C G C T A __ __ __ __ __ __ __ __ - 3’ What are the rest of the nucleotides? Group of answer choices a. 5’ – ATAGCATC – 3’ b. 5’ – CTACGATA – 3’ c. 5’ – AATCGTAG – 3’ d. 5’ – GATGCTAA – 3’
The most important force for stability of the DNA double helix is: a. Disulfide bond b. Hydrophilic interactions c. electrostatic interaction d. Base stacking
Give detailed Solution with explanation (don't give Handwritten answer
The question is attached
Which of the following types of DNA damage would be hardest to repair using the DNA repair pathways?A. Complete removal of three nucleotides in the middle of one strand.B. A covalent bond between a base on one strand and a base on the complementary strand.C. Incorporation of a sugar other than deoxyribose into one strand.D. Covalent attachment of a short polypeptide to a single base.E. A covalent bond between a base and a deoxyribose on the same strand. Please explain why it's B
a. unwinds the DNA helix b. stabilizes and stops the two strands from annealing (rebinding with each other) c. recoils the DNA d. cleaves both strands of DNA to relieve tension at supercoils e. places RNA primers at their proper location on the template strands f. acts as starting points for DNA polymerase g. adds DNA nucleotides to form new DNA strands h. forms phosphodiester bonds to join Okazaki fragments Esc 1. single-strand binding protein 2. helicase 3. DNA ligase 4. RNA primer 5. gyrase 6. DNA polymerase 53°F Cloudy 3 Q Search $ F5 FR
Which of the following statements about nucleic acids is not correct? Select one: A. In DNA the distance between the strands of the double helix is relatively constant. B. The growing DNA polymer is synthesized in the 5' to 3' direction. C. The enzymes that catalyze DNA synthesis are known as DNA polymerases. D. RNA strands are synthesized in the 3' to 5' direction. E. Unlike DNA, RNA is easily cleaved because the 2'-OH group of the ribose is a nucleophile that catalyzes hydrolysis of the strand.
Which of the following relations will be found in the percentages of bases of a double-stranded DNA molecule? a. A+T-G+C b. A+G=T+C A+C-G+T c. d. (A +T)/ (C+G) = 1.0 e. (A+G)/ (C+T)= 1.0 f. (A/C)=(G/T) g. (A/G)=(T/C) h. (A/T)=(G/C)
Using the figure below, which end of the double helix,"A" or "B", would be considered the 5 prime end? B (type "A" or "B" in the blank) Which of the following statements would best explain your reasoning for question 1? 1 (type 1, 2 or 3 in the blank) The end of the DNA strand with the phosphate exposed is the 5 prime end The end of the DNA strand that shows the five carbon sugar pointing down is the 5 prime end The end of the DNA strand with the fifth carbon on the sugar molecule is the 5 prime end
My question is in the picture l have attached
In Watson and Crick's model of DNA structure, the two strands of the DNA double helix are joined through a. Ionic bonds b. Hydrophobic interactions c. Covalent bonds d. Disulfide bonds e. Hydrogen bonds
In the Watson-Crick structure of DNA, the: a. adenine content of one strand must equal the thymine content of the same strand. b. nucleotides are arranged in the A-form. c. purine content (fraction of bases that are purines) must be the same in both strands. d. two strands are parallel. e. the strands are complementary to each other.

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