Crime Scene Investigation: Cindy was attacked by a masked assailant but she managed to scratch him and get away. Three suspects were apprehended and their DNA samples were cut by the same restriction enzyme and then run through a gel. 1. Whose DNA matches the skin under Cindy's fingernails? 2. Why do some DNA piecestravel farther in the gel than others? 3. Why is important to use the same type of restriction enzyme when cutting all the DNA samples? Skin undem Fingernail Cindy's DM Suspect X Suspect Y Suspect Z

Crime Scene Investigation: Cindy was attacked by a masked assailant but she managed to scratch him and get away. Three suspects were apprehended and their DNA samples were cut by the same restriction enzyme and then run through a gel. 1. Whose DNA matches the skin under Cindy's fingernails? 2. Why do some DNA piecestravel farther in the gel than others? 3. Why is important to use the same type of restriction enzyme when cutting all the DNA samples? Skin undem Fingernail Cindy's DM Suspect X Suspect Y Suspect Z

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter14: Biotechnology And Society

Section: Chapter Questions

Problem 9QP

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Restriction enzymes bind to specific sequences of DNA to seal them together. True False
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If you were to re-do this lab again with the same basic constraints (one DNA source, multiple enzymes), what would you do to make the gel a clear, readable DNA fingerprint? Would you change any restriction enzymes? Would you run the gel longer? Explain.
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QUE Marker CS1 CS2 J DNA1 DNA1 DNA2 DNA2 Enz 1 Enz2 Enz1 Enz2 [[ 1 1 11 JI Marker TE HC (CC Compare the two suspects DNA Samples from tubes 4 and 3 with the crime scene samples CS1 these were all cut with Restriction enzyme 1) Then compare the suspects DNA from tubes 2 and 4 with the crime scene sample CS2 (all cut with Restriction enzyme 2) om AUT Figure 7.2 Example gel image of suspect and crime scene samples. Samples were digested with restriction enzymes and run on a 0.8% gel. Please note that the markers used in this experiment may not match the markers in this figure.
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Answer Part d,e,f