Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 20, Problem 33ESP
The U.S. Department of Justice has established a database that catalogs PCR amplification products from short tandem repeats of the Y chromosome (Y-STRs) in humans. The database contains polymorphisms of five U.S. ethnic groups (African-Americans, European Americans, Hispanics, Native Americans, and Asian-Americans) as well as the worldwide population.
- (a) Given that STRs are repeats of varying lengths, for example (TCTG)9-17 or (TAT)6-14, explain how PCR could reveal differences (polymorphisms) among individuals. How could the Department of Justice make use of those differences?
- (b) Y-STRs from the nonrecombining region of the Y chromosome (NRY) have special relevance for forensic purposes. Why?
- (c) What would be the value of knowing the ethnic population differences for Y-STR polymorphisms?
- (d) For forensic applications, the probability of a “match” for a crime scene DNA sample and a suspect’s DNA often culminates in a guilty or innocent verdict. How is a “match” determined, and what are the uses and limitations of such probabilities?
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Chapter 20 Solutions
Concepts of Genetics (12th Edition)
Ch. 20 - A plasmid that is both ampicillin and tetracycline...Ch. 20 - You have just created the worlds first genomic...Ch. 20 - What undesirable or unforeseen consequences might...Ch. 20 - Do we have the ethical right to alter the genomes...Ch. 20 - Should these new technologies be regulated...Ch. 20 - HOW DO WE KNOW? In this chapter we focused on how...Ch. 20 - CONCEPT QUESTION Review the Chapter Concepts list...Ch. 20 - What roles do restriction enzymes, vectors, and...Ch. 20 - The human insulin gene contains a number of...Ch. 20 - Although many cloning applications involve...
Ch. 20 - Using DNA sequencing on a cloned DNA segment, you...Ch. 20 - Restriction sites are palindromic; that is, they...Ch. 20 - List the advantages and disadvantages of using...Ch. 20 - What are the advantages of using a restriction...Ch. 20 - In 1975, the Asilomar Conference on Recombinant...Ch. 20 - In the context of recombinant DNA technology, of...Ch. 20 - If you performed a PCR experiment starting with...Ch. 20 - Prob. 13PDQCh. 20 - Prob. 14PDQCh. 20 - You have recovered a cloned DNA segment from a...Ch. 20 - Prob. 16PDQCh. 20 - Although the capture and trading of great apes has...Ch. 20 - Prob. 18PDQCh. 20 - Prob. 19PDQCh. 20 - Prob. 20PDQCh. 20 - Traditional Sanger sequencing has largely been...Ch. 20 - How is fluorescent in situ hybridization (FISH)...Ch. 20 - What is the difference between a knockout animal...Ch. 20 - Prob. 24PDQCh. 20 - When disrupting a mouse gene by knockout, why is...Ch. 20 - Prob. 26PDQCh. 20 - Prob. 27PDQCh. 20 - As you will learn later in the text (Special...Ch. 20 - The gel presented here shows the pattern of bands...Ch. 20 - A widely used method for calculating the annealing...Ch. 20 - Most of the techniques described in this chapter...Ch. 20 - In humans, congenital heart disease is a common...Ch. 20 - The U.S. Department of Justice has established a...Ch. 20 - Prob. 34ESP
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