Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 14, Problem 13TYK
Summary Introduction
To review:
The reason for the growth of antibiotic resistance in bacteria among similar other bacteria that are killed by the antibiotic.
Introduction:
The chemicals or bioactive molecules that have the potential to kill other bacteria are termed as antibiotics. Furthermore, they are used to treat against bacterial infections. Some bacteria develop resistance genes and become resistant to antibiotics. Thus, such bacteria can survive while sensitive bacteria die in the presence of antibiotics.
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Which model accurately represents the semi-conservative nature of DNA replication?
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Chapter 14 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 14.1 - Prob. 1SBCh. 14.2 - Prob. 1SBCh. 14.2 - Prob. 2SBCh. 14.2 - Prob. 3SBCh. 14.2 - Prob. 4SBCh. 14.3 - What is the importance of complementary base...Ch. 14.3 - Why is a primer needed for DNA replication? How is...Ch. 14.3 - DNA polymerase III and DNA polymerase I are used...Ch. 14.3 - Prob. 4SBCh. 14.4 - Why is a proofreading mechanism important for DNA...
Ch. 14 - Working on the Amazon River, a biologist isolated...Ch. 14 - Prob. 2TYKCh. 14 - Pyrimidines built from a single carbon ring are:...Ch. 14 - Which of the following statements about DNA...Ch. 14 - Which of the following statements about DNA is...Ch. 14 - Prob. 6TYKCh. 14 - Prob. 7TYKCh. 14 - Prob. 8TYKCh. 14 - Prob. 9TYKCh. 14 - Prob. 10TYKCh. 14 - Discuss Concepts Eukaryotic chromosomes can be...Ch. 14 - Prob. 12TYKCh. 14 - Prob. 13TYKCh. 14 - Discuss Concepts During replication, an error...Ch. 14 - Design an Experiment Design an experiment using...Ch. 14 - Prob. 16TYKCh. 14 - Prob. 1ITDCh. 14 - Prob. 2ITD
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- The following diagram represents a DNA molecule that is undergoing replication. Draw in the strands of newly synthesized DNA and identify (a) the polarity of the newly synthesized strands, (b) the leading and lagging strands, (c) Okazaki fragments, and (d) RNA primers.arrow_forwardDescribe each hypothesis for DNA replication A.) Conservative B.) Semiconservative C.) Dispersivearrow_forwardCompare and contrast DNA replication in bacteria and eukaryotes.arrow_forward
- The phrase 5to3 refers to the _________ . a. timing of DNA replication b. directionality of DNA synthesis c. number of phosphate groupsarrow_forwardThe model that correctly describes the process of DNA replication is thea. conservative model.b. semiconservative model.c. dispersive model.d. Any of the above models describes the process correctly.arrow_forwardWhich terms accurately reflect the nature of replication of the chromosome in E. coli? Bidirectional and fixed point of initiation Unidirectional and reciprocal Unidirectional and fixed point of initiationarrow_forward
- 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 DNAarrow_forwardIn DNA replication, the role of topoisomerase is to Question 11 options: a) "unzip" the double stranded DNA in front of DNA polymerase. b) maintain the single stranded DNA. c) supercoil the DNA after the replication fork has passed. d) relieve supercoil tension in the DNA in front of the replication fork.arrow_forwardYou see that a piece of DNA is being copied. But you cannot tell if this an example of DNA replication or RNA transcription. Describe three ways that you can tell the two processes apart.arrow_forward
- 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?arrow_forwardShows an autoradiograph of a replicating bacterial chromosome. If you analyzed many replicating chromosomes, what types of information could you learn about the mechanism of DNA replication?arrow_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
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