Answered: L 1 2 3 Locus A Locus B L = Standard…

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L 1 2 3 Locus A Locus B L = Standard marker 1 = Suspect 1 2 = Suspect 2 3 = DNA from crime scene %3D %3D

Essentials of Pharmacology for Health Professions

7th Edition

ISBN:9781305441620

Author:WOODROW

Publisher:WOODROW

Chapter1: Consumer Safety And Drug Regulations

Section: Chapter Questions

Problem 3CRQ

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Question

Analysis of two loci for investigation

Someone broke into the bookstore and stole thousands of dollars’ worth of textbooks. Some hairs were left behind, from which DNA was extracted. An individual was caught with all five of the stolen textbooks in his bag. He claims his friend gave them to him.

You decide to amplify two regions of the DNA (two loci, plural of locus) and digest the samples, and get the following result on the electrophoresis gel.

L = Standard marker

1 = Suspect 1

2 = Suspect 2

3 = DNA from crime scene

(Note: assume bands that are close in distance traveled are the same length. Higher concentrations of DNA can make a band appear to travel farther.)

What does locus B tell you about the reliability of using loci for analysis?

L 1 2 3
Locus A
Locus B
L = Standard marker
1 = Suspect 1
2 = Suspect 2
3 = DNA from crime scene

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