Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 7.6, Problem 3TQ
Summary Introduction
To review:
The methods used for preventing amplification of wrong DNA (deoxyribonucleic acid) during PCR (polymerase chain reaction) technique.
Introduction:
A method that is widely used in the field of molecular biology to synthesize several copies of a determined DNA segment is known as polymerase chain reaction. Millions of copies can be generated from a DNA sample in a short period of time. This technique was given by Kary Mulis in 1983.
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If you wanted PCR to be successful but only had access to a thermolabile DNA polymerase, what would you need to do and why? (assume everything else has remained the same in your PCR)
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A scientist programed his PCR machine to perform five complete cycles of PCR starting with one double stranded DNA molecule, how many molecules of DNA did he get at the end assuming all conditions went normally?
Chapter 7 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 7.2 - Prob. 1TQCh. 7.2 - Prob. 2TQCh. 7.2 - Prob. 3TQCh. 7.2 - Prob. 4TQCh. 7.3 - Prob. 1TQCh. 7.3 - Prob. 2TQCh. 7.3 - Prob. 3TQCh. 7.3 - Prob. 4TQCh. 7.3 - Prob. 5TQCh. 7.6 - Prob. 1TQ
Ch. 7.6 - Prob. 2TQCh. 7.6 - Prob. 3TQCh. 7 - Prob. 1RQCh. 7 - Prob. 2RQCh. 7 - Prob. 3RQCh. 7 - Prob. 4RQCh. 7 - Prob. 5RQCh. 7 - Prob. 6RQCh. 7 - Prob. 7RQCh. 7 - Prob. 8RQCh. 7 - Prob. 9RQCh. 7 - Prob. 10RQCh. 7 - Prob. 11RQCh. 7 - Prob. 12RQCh. 7 - Prob. 13RQCh. 7 - Prob. 14RQCh. 7 - Prob. 15RQCh. 7 - Prob. 1TQCh. 7 - Prob. 2TQCh. 7 - Prob. 3TQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following best describes the process of DNA sequencing? a. DNA is separated on a gel, and the different bands are labeled with fluorescent nucleotides and scanned with a laser. b. A laser is used to fluorescently label the nucleotides present within the DNA, the DNA is run on a gel, and then the DNA is broken into fragments. c. Nucleotides are scanned with a laser and incorporated into the DNA that has been separated on a gel, and then the DNA is amplified with PCR. d. Fragments of DNA are produced in a reaction that labels them with any of four different fluorescent dyes, and the fragments then are run on a gel and scanned with a laser. e. DNA is broken down into its constituent nucleotides, and the nucleotides are then run on a gel and purified with a laser.arrow_forwardHow could personal DNA testing be beneficial to medicine?arrow_forwardMost PCR reactions do not use the more expensive types of DNA polymerase, which have DNA proofreading. How might this be a problem in accurately copying specific DNA sequences of the target gene?arrow_forward
- PCR (polymerase chain reaction) is an excellent method of generating copies of target DNA. If a single piece of double stranded DNA (dsDNA) is put into a PCR machine, how many dsDNA segments will there be after 3 rounds? A. 8 segments, with 2 original strands paired B. 16 segments, with 2 original strands on different segments C. 16 segments, with 2 original strands paired D. 8 segments, with 2 original strands on different segmentsarrow_forwardWould it be possible to use human polymerase for the PCR reaction? a. No, because human polymerase does not have the ability to withstand the high temperatures required for the PCR reaction to occur. b. No, because human polymerase cannot be extracted from cells to use in a lab setting. c. Yes, because we are using human DNA as the template DNA. d. Yes, because human polymerase can add bases to a template strand without a primer.arrow_forwardChoose the one answer that fits best. Which statement regarding PCR is NOT correct (videos)? a. PCR requires a copy of RNA that serves as a template b. Taq polymerase adds nucleotides to the primers and creates a complementary strand of DNA c. Annealing requires cooler temperatures than denaturation d. Repeated cycles of denaturation, annealing and extending DNA strands creates many identical copies of DNA e. PCR is a quick way of using minute quantities of DNA to create millions of copiesarrow_forward
- What is the purpose of including a PCR reaction with no added DNA? Isn’t this just a waste of expensive enzyme when we know that without template, you will not get any PCR products?arrow_forwardWhy is it important for scientists to be able to isolate DNA?arrow_forwardScientists can distinguish between DNA of different individuals, thus making this information useful in criminal investigations. The technique used is called __________. a. DNA fingerprinting b. CRISPR/Cas9 c. fluorescent in situ hybridization d. PCRarrow_forward
- Please answer these two questions regarding PCR: a) Why do you need to perform PCR on DNA obtained from a crime scene? b) Why so forensic labs analyze non-coding DNA rather than genes?arrow_forwardDescribe at least one important application of DNA technology in each of the following fields: medicine, DNA fingerprinting, and transgenic organisms.arrow_forwardCellular DNA replication uses the enzymes for the process while PCR uses thermal denaturation that helps seperate DNA strands. I need a picture that shows the difference between them two using the statement above.arrow_forward
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