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 2CT
A scientist uses a molecule of DNA composed of
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A scientist uses a molecule of DNA composed of radioactive nucleotides as a template for replication and transcription in a nonradioactive environment.
a) What percentage of individual strands of DNA will be radioactive after three (3) DNA replication cycles?
2. b) What percentage of RNA will be radioactive?
Single-stranded regions of DNA are attacked by nucleases in the cell, yet portions of DNA are in a singlestranded form during the replication process. Explain.
During DNA replication, why doesn’t DNA polymerase move away from the replication fork on both strands?
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 is the function of DNA polymerase? a. It degrades DNA in cells. b. It adds RNA nucleotides to a new strand. c. It coils DNA around histones to form chromosomes. d. It adds DNA nucleotides to a replicating strand. e. None of these.arrow_forwardThe phrase 5to3 refers to the _________ . a. timing of DNA replication b. directionality of DNA synthesis c. number of phosphate groupsarrow_forwardEnergy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from ________. a. the nucleotide b. DNA polymerase c. phosphate-group transfers from ATParrow_forward
- The initial mechanism for repairing nucleotide errors in DNA is _____. a. mismatch repair b. DNA polymerase proofreading c. nucleotide excision repair d. thymine dimersarrow_forwardSingle-stranded regions of DNA are attacked by nucleasesin the cell, yet portions of DNA are in a single-stranded form during the replication process. Explain.arrow_forwardWhat role do the following enzymes play in DNA replication? DNA polymerase Helicase DNA ligasearrow_forward
- . DNA polymerase II (in E. coli) is specialized for which of the following functions? DNA replication, DNA recombination, and DNA repair both DNA repair and DNA replication both DNA replication and DNA recombination DNA replication only DNA recombination onlyarrow_forwardwhy is only one nucleotide added at the time during DNA replication?arrow_forwardGiven a part of DNA undergoing replication. Copy and write the corresponding bases in the new strands. Put an arrowhead in the appropriate end of each new strand to illustrate the direction of growth.arrow_forward
- DNA replication involves a series of steps, including initiation, making primers, extension, and connecting DNA fragments. The cell uses different enzymes in a particular order to accomplish these steps. Which of the following represents the correct general order of enzyme use? A. DNA polymerases, helicase, primase, ligase B. Helicase, ligase, primase, DNA polymerases C. Helicase, primase, DNA polymerases, ligase D. Primase, helicase, DNA polymerases, ligasearrow_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_forwardDNA is a very long strand and the cells are very small, how do cells overcome this during DNA replication?arrow_forward
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