Modified Mastering Microbiology with Pearson eText -- Standalone Access Card -- for Microbiology with Diseases by Taxonomy (5th Edition)
5th Edition
ISBN: 9780134402819
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 7, Problem 6MC
Summary Introduction
Introduction:
DNA replication is a process which makes an identical copy of a DNA from the original DNA molecule. The replication involves 3 steps; initiation, elongation, and termination. DNA gyrase unwinds the double helix, DNA helicase unzips the double helix, primase synthesize the RNA primer, and
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In the dideoxy-sequencing reaction, what terminates DNA synthesis at a particular base? a. The absence of a base on the ddNTP halts the DNA polymerase. b. The ddNTP causes a break in the sugar–phosphate backbone. c. DNA polymerase will not incorporate a ddNTP into the growing DNA strand. d. The absence of a 3′-OH group on the ddNTP prevents the addition of another nucleotide.
What is DNA polymerase?
a.An enzyme that carries out DNA replication
b.Short, single strand of DNA that base-pairs with a specific DNA sequence
c.An enzyme that corrects mutations that arise during the replication of DNA
d.An enzyme that seals any gaps that remain between bases of replicating strands of DNA
DNA polymerase III is a processive enzyme, which means that
a. it does not dissociate from the growing strand after it has attached a nucleotide to the 3′ end.
b. it makes a new strand very quickly.
c. it proceeds toward the opening of the replication fork.
d. it copies DNA with relatively few errors.
Chapter 7 Solutions
Modified Mastering Microbiology with Pearson eText -- Standalone Access Card -- for Microbiology with Diseases by Taxonomy (5th Edition)
Ch. 7 - Which of the following is most likely the number...Ch. 7 - Which of the following is a true statement...Ch. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Prob. 5MCCh. 7 - Prob. 6MCCh. 7 - Prob. 7MCCh. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MC
Ch. 7 - Which of the following is not a mechanism of...Ch. 7 - Prob. 12MCCh. 7 - Prob. 13MCCh. 7 - Which of the following are called jumping genes?...Ch. 7 - Prob. 15MCCh. 7 - Prob. 16MCCh. 7 - Prob. 17MCCh. 7 - Prob. 18MCCh. 7 - Prob. 19MCCh. 7 - Prob. 20MCCh. 7 - Prob. 21MCCh. 7 - Prob. 22MCCh. 7 - Prob. 23MCCh. 7 - Prob. 24MCCh. 7 - The trp operon is repressible. This means it is...Ch. 7 - The three steps in RNA transcription are...Ch. 7 - Prob. 2FIBCh. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - An operon consists of ____________,...Ch. 7 - Prob. 6FIBCh. 7 - A daughter DNA molecule is composed of one...Ch. 7 - Prob. 8FIBCh. 7 - Prob. 9FIBCh. 7 - ____________ is a recombination event that occurs...Ch. 7 - Prob. 11FIBCh. 7 - Prob. 12FIBCh. 7 - Prob. 1SACh. 7 - Prob. 2SACh. 7 - Prob. 3SACh. 7 - Polypeptide synthesis requires large amounts of...Ch. 7 - Prob. 5SACh. 7 - Prob. 6SACh. 7 - Prob. 7SACh. 7 - Prob. 8SACh. 7 - Describe how DNA is packaged in both prokaryotes...Ch. 7 - Prob. 10SACh. 7 - Prob. 11SACh. 7 - Prob. 12SACh. 7 - On the figure below, label DNA polymerase I, DNA...Ch. 7 - Prob. 2VICh. 7 - Prob. 3VICh. 7 - If molecules of mRNA have the following nucleotide...Ch. 7 - A scientist uses a molecule of DNA composed of...Ch. 7 - Prob. 3CTCh. 7 - Prob. 4CTCh. 7 - Prob. 5CTCh. 7 - Suppose that the E. coli gene for the lac operon...Ch. 7 - Prob. 7CTCh. 7 - Prob. 8CTCh. 7 - Prob. 9CTCh. 7 - How can knowledge of nucleotide analogs be useful...Ch. 7 - The endosymbiotic theory states that mitochondria...Ch. 7 - Prob. 12CTCh. 7 - Prob. 13CTCh. 7 - Prob. 14CTCh. 7 - Prob. 15CTCh. 7 - What DNA nucleotide triplet codes for codon UGU?...Ch. 7 - Prob. 17CTCh. 7 - Prob. 1CMCh. 7 - DNA replication requires a large amount of energy,...Ch. 7 - In bacteria, polypeptide translation can begin...Ch. 7 - Prob. 3TMWCh. 7 - Prob. 4TMWCh. 7 - Clinical Case Study Deadly Horizontal Gene...Ch. 7 - Emerging Disease Case Study Vibrio Vulnificus...
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- What feature of a DNA fragment causes it to move through a gel during electrophoresis? a. the electrical charges of its phosphate groups b. its nucleotide sequence c. the hydrogen bonds between its base pairs d. its double helix shapearrow_forwardDuring DNA replication, the helicase enzyme binds to DNA and Select one: a. prevents the DNA strands from rewinding back into the helical shape b. cuts the double stranded DNA into single strands c. provides the starting point where new nucleotides can be added d. adds new nucleotides to the template strandarrow_forwardWhat is DNA polymerase? A. An enzyme that corrects mutations that arise during the replication of DNA B. An enzyme that seals any gaps that remain between bases of replicating strands of DNA C. Short, single strand of DNA that base-pairs with a specific DNA sequence D. An enzyme that carries out DNA replicationarrow_forward
- DNA Polymerase holoenzymes used for DNA replication recognizes A. double-stranded sequences as starting points B. methylated lipids as start points C. acetylated lipids as start points D. single stranded sequences as starting pointsarrow_forwardTo make a new DNA strand, which of the following is necessary? a. A template strand c. Heavy nitrogen b. Nucleotides d. Both a and barrow_forwardWhich mechanism requires the ability to distinguish between newly synthesized and template strands of DNA? a. Nucleotide selection b. DNA proofreading c. Mismatch repair d. All of the abovearrow_forward
- DNA polymerase requires the following for replication: A. Single stranded ("unzipped") DNA B. Double stranded ("zipped") DNA C. An RNA primer D. A and C E. B and Carrow_forwardWhat is the function of resolvase in recombination? a. It unwinds double-stranded DNA. b. It allows a single DNA strand to invade a DNA helix. c. It displaces one of the original DNA strands during branch migration. d. It cleaves the Holliday structure.arrow_forwardIn DNA replication, the enzyme helicase breaks hydrogen bonds between complementary nucleotides and causes the double-stranded DNA to become single-stranded (denatures the DNA). What is used in PCR to break the hydrogen bonds between complementary nucleotides? A) buffers B) DNases C) taq Polymerase D) heat E) helicasearrow_forward
- From which end of a strand of nucleic acid does DNA polymerase I REMOVE nucleotides? A) 5' B) 3' C) 2' D) N-term E) C-termarrow_forwardThe problem of replicating the lagging strand—that is, adding bases in the 3’ to 5’ direction—is solved by DNA through the use of (a) base pairing (b) replication forks (c) helicase (d) Okazaki fragments (e) topoisomerasearrow_forwardBase analogs are mutagenic because of which characteristic? a. They produce changes in DNA polymerase that cause it to malfunction. b. They distort the structure of DNA. c. They are similar in structure to the normal bases. d. They chemically modify the normal bases.arrow_forward
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