Question 2 Which of the following is FALSE about RNA polymerase II: O Le DNA polymerase, it catalyzes a reaction that forms a phosphodiester bond O Like DNA polymerase, it moves along the template strand of DNA in the 3 to 5 direction It produces fewer mistakes en synthesizing RNA than DNA Polymerase during replication O Both RNA and DNA polymerase are made up of amino acids

Question 2 Which of the following is FALSE about RNA polymerase II: O Le DNA polymerase, it catalyzes a reaction that forms a phosphodiester bond O Like DNA polymerase, it moves along the template strand of DNA in the 3 to 5 direction It produces fewer mistakes en synthesizing RNA than DNA Polymerase during replication O Both RNA and DNA polymerase are made up of amino acids

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Description: Give typing answer with explanation and conclusion Question 2Which of the following is FALSE about RNA polymerase II:O Like DNA polymerase, it catalyzes a reaction that forms a phosphodiester bondO Like DNA polymerase, it moves along the template str

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter28: Dna Metabolism: Replication, Recombination, And Repair

Section: Chapter Questions

Problem 17P

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QUESTION 3 which of the following is true for methyl directed repair O A. methyl directed repair cannot distinguish the template strand from the newly replicated strand. O B. methyl directed repair changes both the template strand and the newly replicated strand. O C. methyl directed repair corrects the DNA strand that is methylated. O D. methyl directed repair corrects the mismatch by changing the newly replicated strand. O E. methyl directed repair corrects the mismatch by changing the template strand.
QUESTION 18 Which of the following is/are true regarding the enzyme PRIMASE? Primase functions during cellular DNA replication Without primase activity, DNA polymerase in our cells can NOT begin synthesizing new nucleotide chains Primase uses DNTP building blocks Primase is a polymerase enzyme Primase functions AFTER DNA helicase activity
Question 30 Which of the following correctly describes a difference between RNA & DNA polymerases? (A) RNA polymerases usually do not need a template, while DNA polymerases do. B DNA polymerases usually require a primer while RNA polymerases do not. RNA polymerases usually synthesize introns, while DNA polymerases synthesize cistrons. D RNA polymerases polymerize 5' –> 3', while DNA polymerases polymerize 3' –> 5'.
Question 7 What is the function of primase? It O synthesizes an RNA primer. O separates DNA strands. synthesizes the DNA O joints Okazaki fragments. O removes primer.
QUESTION 3 What type of chemical bonds hold together a DNA double helix? weak hydrogen bonds between nitrogenous bases O weak hydrogen bonds between nitrogenous bases O strong covalent bonds between phosphates O covalent bonds between deoxyribose and nitrogenous bases O hydrogen bonds between hydroxyl groups
Question 3. How is the primer different in eukaryotic DNA replication than prokaryotic DNA replication?
Question 6 Which of the followng causes mutabons that are considered induced? O sunight Otutomrercation of purine and pyrmidine bases O DNA polymerasa
QUESTION 9 These are enzymes that untwist the double helix at the replication forks of replicating DNA. Helicases Stingle-strand binding proteins Topoisomerase Telomerase
QUESTION 6 These correct “overwinding” ahead of the replication forks by breaking, swiveling, and rejoining DNA strands. Helicases Single-strand binding proteins Topoisomerase Telomerase
Question 1 DNA replication is said to be semi-conservative because Question 1 options: each daughter duplex contains one strand from the original DNA duplex and one newly synthesized DNA strand each of the original DNA strands is used as a template by a DNA polymerase to make a complementary DNA strand Replication is not conserved between daughter cells DNA polymerase adds dNMP residues to the free 3′ hydroxyl group of the growing DNA strand Question 3 DNA synthesis is said to be semi-discontinuous because: Question 3 options: Only the Lagging strand is synthesized continuously Only the Leading strand is synthesized continuously Both leading and lagging strands are synthesized discontinuously Replication starts ar replication fork Question 4 Unlike RNA polymerases, DNA polymerases cannot…
QUESTION 12 The RNA World Hypothesis is kind of asking the question 'what inside the cell is alive'. Which of the following statements or ideas is least relevant, least supportive, of the RNA World Hypothesis? A. RNAS have the potential for replication using complementary base pair interactions. O B. RNAS can fold up into structural objects with specific functions, such as tRNAS. Other RNA objects are responsible for important reactions such as pre-MRNA splicing and peptide bond formation. O C. Ribonucleotides in the form of the dinucleotides NAD and FAD act as critical carries of electrons and protons for oxidation/reduction reactions. O D. The flow of information described by the Central Dogma, i.e., DNA goes to RNA goes to protein, shows that RNA is at the center. O E. One of the ribonucleotide building blocks, ATP, serves as the most important source of energy for almost all aspects of cellular metabolism. Other ribonucleotides such as GTP and CAMP often act as switching and…
QUESTION 18 Which of the following statements about termination mechanisms for nucleic acid polymerization is FALSE? O A. Rho independent termination in bacteria involves formation of a stem loop followed by series of U residues. O B. ter dependent termination by tus proteins causes genomic DNA replication to conclude at some point on the circular bacterial genome opposite (i.e. halfway around) relative to the location of the origin. OC. Termination by the rho protein involves C rich regions of the transcript to which rho attaches and then moves to displace the polymerase. D. Rho dependent or rho independent transcription termination sites are located between each of the coding regions present in polycistronic bacterial RNAS. O E. Transcription termination is especially important for bacterial genomes because the genes are closely spaced and we do not want transcripts from one gene to read through to the adjacent downstream gene.