Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10, Problem 3MCQ
The function of ligase is to
- a. rejoin segments of DNA.
- b. make longitudinal cuts in DNA.
- c. synthesize cDNA.
- d. break down ligaments.
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Students have asked these similar questions
The function of DNA ligase is to:
a. Catalyze formation of phosphodiester bonds between adjacent nucleotides
b. Catalyze formation of hydrogen bonds between adjacent nucleotides
c. Keep single strands of DNA apart during replication
d. Facilitate base pairing between single stranded molecules in DNA
e. Both a. and d. are correct
All of the following statements about telomerase are correct except:
A. the RNA component acts as a template for the synthesis of a segment of DNA.
B. it adds telomeric repeats to the 5'-ends of the DNA strands.
C. it provides a mechanism for replicating the ends of linear chromosomes.
D. it recognizes a G-rich single strand of DNA
E. it is a reverse transcripcase.
A.) There is no change in the DNA sequence if nucleotides are added or removed, it will have no effect to the cell. B.) Mutations in the DNA sequence are all irreversible.
A. Statement A is correct
B. Statement B is correct
C. Both A and B are correct
D. Both A and B are incorrect
Chapter 10 Solutions
Microbiology: A Systems Approach
Ch. 10.1 - Provide examples of practical applications of...Ch. 10.2 - Prob. 2AYPCh. 10.2 - Describe how gel electrophoresis is used to...Ch. 10.2 - Prob. 4AYPCh. 10.2 - Prob. 5AYPCh. 10.3 - Prob. 6AYPCh. 10.3 - List examples of genetically modified bacteria,...Ch. 10.4 - Prob. 8AYPCh. 10.4 - Prob. 9AYPCh. 10.5 - Outline in general terms the process of DNA...
Ch. 10.5 - Prob. 11AYPCh. 10.5 - Prob. 12AYPCh. 10.5 - Prob. 13AYPCh. 10.6 - Prob. 14AYPCh. 10 - Which of the following is/are not essential to...Ch. 10 - Prob. 2MCQCh. 10 - The function of ligase is to a. rejoin segments of...Ch. 10 - The creation of biological molecules entirely from...Ch. 10 - Which of the following sequences, when combined...Ch. 10 - A region of DNA in a plasmid that is recognized by...Ch. 10 - Prob. 7MCQCh. 10 - Which of the following is a primary participant in...Ch. 10 - Single nucleotide polymorphisms are found in a....Ch. 10 - Microarrays are used to monitor a. the rate of DNA...Ch. 10 - Prob. 11TFCh. 10 - A nucleic acid probe can be used to identify...Ch. 10 - Prob. 13TFCh. 10 - In order to detect recombinant cells, plasmids...Ch. 10 - Plasmids are the only vectors currently available...Ch. 10 - You are a public health official trying to...Ch. 10 - a.Construct a strand of complementary DNA (cDNA)...Ch. 10 - a.Explain whether or not DNA polymerase from a...Ch. 10 - a.Define the term RFLP. Explain how RFLPs are...Ch. 10 - Prob. 5CTQCh. 10 - From chapter 6, figure 6.19. What has happened to...Ch. 10 - Prob. 2VCCh. 10 - Using the words that follow, please create a...
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- In nucleotide excision repair in E. coli, the function of the UvrA/UvrB complex is toa. detect DNA damage.b. make cuts on both sides of the damage.c. remove the damaged piece of DNA.d. replace the damaged DNA with undamaged DNA.arrow_forwardWhich proteins are responsible for the unwinding of the double-stranded DNA during relication? A. Primases. B. Lyases. C. Helicases D. Topoisomerases E. Ligasesarrow_forwardMatch the activity below with the correct enzyme. (You won't use all the enzymes listed.) RNA acts as a template for DNA synthesis: RNA directs the cutting of an RNA molecule at a precise location: RNA directs the cutting of an DNA molecule at a precise location: options: a. Small Nuclear Ribonuclear Protein (SNRNP) b. telomerase c. primase d. helicase e. CRISPR/Cas9arrow_forward
- Match the correct terms with its definition A. Transcription B. Translation C. Amino acid D. Dehydration ..........1. Process of producing a polypeptide from mRNA. ..........2. Process that forms messenger RNA from a DNA gene. ..........3. RNA polymerase is continuous by adding nucleotides complementary to the DNA template. ..........4. Small ribosome subunit binds to mRNA, and tRNA enters the P active site on the ribosome. ..........5. Processes of monomers are linked together to synthesize a biological polymer. ..........6. The building blocks of protein.arrow_forwardWhich of the following statements below is incorrect? * A. the genetic code is overlapping B. the genetic code is universal C. degenerate codon specify the same amino acids D. the genetic code is triplet Which protein can break covalent bond? * A. Helicase B. Primase C. SSB D. DNA gyrase What is the complementary hnRNA base sequence produced from the DNA base sequence 5' C-T-A-T-A-C 3'? * A. 3' C-A-T-A-T-C 5' B. 3' G-A-T-A-T-G 5' C. 3' G-A-U-A- U-G 5' D. 3' C-U-A-U-A-G 5' Which of the following statements concerning the " cloverleaf" shape of tRNA molecules is correct? * A. four hairpin loops are present B. three hairpin loops and one open end are present C. two hairpin loops and two open ends are present…arrow_forwardWhich of the following best describes the function of telomerase? a. The telomerase uses its RNA component as a template and performs reverse transcription to extend the telomeres. b. The telomerase uses an external RNA transcript as a template and performs reverse transcription to extend the telomeres. c. The telomerase uses its RNA component as a template and recruits DNA polymerase I to extend the telomeres. d. The telomerase uses an external RNA transcript as a template and recruits DNA polymerase I to extend the telomeres.arrow_forward
- Which of the following is NOT true of DNA replication? a. Helicase uses ATP as an energy source. b. Primase uses ATP to build primers. c. Single-stranded binding proteins are enzymes that hold the strands open. d. Telomerase adds nucleotides to the original DNA template. e. Ligase uses a condensation reaction to make a single phosphodiester bond at each site of ligation..arrow_forwardTranscription is initiated when: a. initiation factors assemble ribosomal subunits, mRNA, and initiator tRNA. b. RNA polymerase comes to a stop sequence. c. RNA polymerase binds to a region of DNA called the promoter. d. new nucleotides are added to an existing strand of nucleotides e. helicase unwinds the DNA templatearrow_forwardWould it be possible to start synthesizing the daughter DNA strand without assembling the RNA primer first? Why? Why not?arrow_forward
- 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 Barrow_forwardThe enzyme responsible for adding new nucleotides to a growing DNA chain during DNA replication is a. helicase. b. RNA polymerase. c. DNA polymerase. d. DNA ligase.arrow_forwardDefine the following terms: a. processivity b. replisome c. exonuclease d. DNA ligase e. repliconarrow_forward
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