2. What components do you need to perform PCR?3. What is in the master mix and why do you need each component?4. Why do you need to perform PCR on DNA evidence from a crime scene?5. What steps make up a PCR cycle, and what happens at each step?176Introduction to PCR-Based Forensics

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What components do you need to perform PCR?

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter10: Biotechnology

Section: Chapter Questions

Problem 7SQ

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Question

2. What components do you need to perform PCR?
3. What is in the master mix and why do you need each component?
4. Why do you need to perform PCR on DNA evidence from a crime scene?
5. What steps make up a PCR cycle, and what happens at each step?
176
Introduction to PCR-Based Forensics

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The idea behind PCR-based diagnostics is that a very small number of microbial genomes in a patient sample can be multiplied by PCR and more easily detected by the clinical team managing the patient’s care. Also, genetic-based diagnostics are very useful for viral infections because we don’t have biochemical tests, etc. to distinguish one virus from another (remember, viruses are metabolically inactive). However, a lot of work goes into the development of these tests. For instance, PCR requires primers that are complementary to the viral genome that is being copied. If primers are complementary to the target genome, what must scientists know to design primers that bind to the viral genome to be copied? (I mean this to be a general question; don’t look up the details of designing primers)
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