Please answer all the questions. I'll definitely give a like. 4. When discussing mismatch repair and base repair mechanisms:a. Compare and contrast the two mechanisms. Which processes are similar? Which are different?b. In order to corect mistakes/damage during both processes, the complementary strand is used as atemplate. If mismatches or damaged bases 'nucleotides were repaired without regard for which strandserved as template, how would this impact DNA? Explain your answer.

DNA repair is defined as a set of mechanisms ;by using which cell is able to repair the DNA…

Answered: 4. When discussing mismatch repair and…

4. When discussing mismatch repair and base repair mechanisms: a. Compare and contrast the two mechanisms. Which processes are similar? Which are different?

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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. It is thought that the signal for eukaryotic mismatch repair, for iden- tifying the strand to be repaired, could be nicks in the DNA to be repaired. If so, would you expect the nicked strand or the intact strand to be the strand to be repaired? Briefly explain your answer.
DNA repair enzymes preferentially repair mis- matched bases on the newly synthesized DNA strand, using the old DNA strand as a template. If mismatches were instead repaired without regard for which strand served as template, would mismatch repair reduce repli- cation errors? Would such a mismatch repair system result in fewer mutations, more mutations, or the same number of mutations as there would have been without any repair at all? Explain your answers.
1. Genosensors are biosensors based on the principle of complementarity and hybridization of DNA strands. Which factor may be the least important in the regulation of the process? length of the DNA sequence primer length concentration of the DNA composition of the DNA sequence salt concentration temperature 2. Which of the following produces a T1-weighted image? TR = T1, TE << T2 TR >> T1, TE = T2 TR = T1, TE = 2 TR >> T1, TE << T2
40.Would it be possible to start synthesizing the daughter DNA strand without assembling the RNA primer first? Why? Why not? A.Yes, because the 5' PO4 is already present in the DNA strand which will be used as a template. B.No, because the RNA primer which contains the free 3' OH in its ribose has to be synthesized by primase first. C.No, because the RNA primer which contains the free 5' PO4 in its ribose will not be synthesized by primase. D.Yes, because the 3' OH is already present in the DNA strand which will be used as a template.
1. TRUE OR FALSE: a) Okazaki fragments are short DNA pieces that explain how the DNA polymerase can continue the synthesis of the new strand. b) Okazaki fragments are short DNA pieces that explain how the DNA polymerase can continue the synthesis of the new strand.
6. Below are several DNA sequences that are mutated compared with the wild-type sequence: 3’-T A C T G A C T GA C G A T C-5’. Envision that each is a section of a DNA molecule that has separated in preparation for transcription, so you are only seeing the template strand. Construct the complementary DNA sequences (indicating 5’ and 3’ ends) for each mutated DNA sequence, then transcribe (indicating 5’ and 3’ ends) the template strands, and translate the mRNA molecules using the genetic code, recording the resulting amino acid sequence (indicating the N and C termini). What type of mutation is each? 6.d. Mutated DNA Template Strand #4: 3’-T A C G A C T G A C T A T C-5’Complementary DNA sequence:mRNA sequence transcribed from template:Amino acid sequence of peptide:Type of mutation: 6.a. Mutated DNA Template Strand #1: 3’-T A C T G T C T G A C G A T C-5’Complementary DNA sequence:mRNA sequence transcribed from template:Amino acid sequence of peptide:Type of mutation: 6.b. Mutated DNA…
Which of the following statements are true regarding the properties of DNA and RNA polymerase. Select all that apply. Both DNA and RNA polymerase synthesize nucleic acid strands in the 5" to 3' direction. Both DNA and RNA polymerase can initiate strand synthesis on their own. I. RNA polymerase initiates strand synthesis, while DNA polymerase depends upon an existing strand to continue synthesis. II. RNA polymerase only uses ribonucleotides for strand synthesis. DNA polymerase only uses deoxyribonucleotides for strand synthesis. V. Au DNA and RNA polymerases from eukaryotes behave very differently from DNA and RNA polymerases found in prokaryotes. O VI.
Which of the following statements about RNA is/are incorrect? I. RNA strand synthesis does not occur during replication. II. All RNA strands produced during transcription are translated into proteins. III. RNA strands are composed of 10 nucleotide bases per turn. IV. RNA strands can pair with a DNA strand. V. RNA may be synthesized in the 5'-3' orientation and vice-versa (3'-5') depending on the orientation of the template DNA strand O I, II, and IV O I, II, III, IV, and V O II, IV and V O II, IV and V OI, II, III and V O Il and III
Pyrimidine dimers in DNA may be repaired by in E. coli cells. (select all correct answers) Select one or more: O a. photolyase O b. nucleotide excision repair O c. mis-match repair O d. methyl-transferase
1. DNA plays an important role in two processes. During the process of replication, dna provides information to copy itself, so genetic information can be passed on from one generation of cells to the next. DNA also provides instructions for making proteins, in these instructions are vital to the maintenance and function of cells. DNA provides the information on how to order the amino acids required for making various proteins. Describe the significance of crude extraction of DNA from different sample organismic. 2. Distinguish the importance of the following theorems that are interrelated to the study of bioinformatics: (1) proteomics, (2) genomics, (3) biotechnology, (4) biostatistics, and (5) biological engineering. 3. Describe the procedures that you have encountered in the bacterial identification virtual laboratory (media.hhmi.org). Describe each part of the procedure: (1) simple preparation, (2) PCR amplification, (3) PCR purification, (4) sequencing preparation, (5) DNA…
5) Both DNA polymerase (any DNA polymerase) and ligase catalyze the formation of a bond between nucleotides, but these two enzymes do NOT catalyze the same reaction. Briefly describe the differences between the reaction catalyzed by the polymerase activity of a DNA polymerase and the reaction catalyzed by ligase.
There are several factors that contribute to high fidelity of DNA replication. Which of the following statements is INCORRECT? DNA polymerase I has a 3'-5' exonuclease editing activity. O b. RNA primers are used instead of DNA primers. There are balanced levels of dNTPs inside the cell. O C. O d. DNA polymerase III has a 3'-5' exonuclease editing activity. O e. Base-pair geometry plays important role for maintaining the high fidelity of DNA synthesis.