EBK ESSENTIALS OF GENETICS
9th Edition
ISBN: 9780134190068
Author: Palladino
Publisher: YUZU
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Textbook Question
Chapter CHST3, Problem 3DQ
If you were acting as a defense lawyer in a murder case that used DNA profiling as evidence against the defendant, how would you explain to the jury the limitations that might alter their interpretation of the crime scene DNA profile?
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Chapter CHST3 Solutions
EBK ESSENTIALS OF GENETICS
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- what does DNA tests tell us about the time frame or circumstances under which DNA came to be associated with an evidence sample? It depends on the sample Who was the primary wearer of an article of clothing If the DNA was depositied as a part of the crime or from innocent contact The order in which the individuals contributed DNA to an evidence samplearrow_forwardWhat are three major limitations of forensic DNA profiling?arrow_forwardSince DNA anaylsis is specific to human body fluids such as blood, why do Crime Scene Investigators even bother with doing field test for biological fluids? Why not submit all samples that might have any kind biological fluid to the lab?arrow_forward
- Write an analysis of the results, interpreting what you see in the smaller gell focusing on 6A, 6B, 6C, 6D and 6CS ( Crime Scene) DNA fragments in the agrose gell. Who is the guilty suspect and why ?arrow_forwardDiscuss the principle of DNA fingerprinting. How would you use the technique to find out a criminal in forensic studies ? Explain.arrow_forwardWhat is DNA phenotyping, and how do law enforcement agencies use this profiling method?arrow_forward
- Which of the following criteria do you feel is the most important one to optimize for a DNA profiling methods? Speed Discriminating power Sensitivity Cost False Positive Ratearrow_forwardDNA profiling identifies a person by the similar parts of his or her DNA True Falsarrow_forwardThe Evidence shows which suspect was at the crime scene? ( image of murder investigation) A) suspect A B) suspect B C) suspect C D) none were at the crime scene Which of the following choices most likely lists the sizes of the four DNA fragments in lane 6 ( second image) of this agarose gel stained with ethidium bromide? ( Note: the well that the DNA was loaded into is at the top of the gel image). A) 100 bp, 300 bp, 450 bp, 600 bp. B) 300 bp, 400 bp, 100 bp, 600 bp C) 600 bp, 450 bp, 300 bp, 100 bp D) 400 bp, 300 bp, 600 bp, 100 bp E) DNA fragment size can't be estimated using an agarose gel.arrow_forward
- In typing DNA from a sample found at a crime scene, how can a DNA mismatch prove that a suspect is not the source of that sample,whereas a DNA match does not necessarily prove that a suspect is the source?arrow_forwardWhen forensic experts work with a blood sample, what part of it do they use for PCR; red blood cells, white blood cells, or proteinaceous antibodies? If trying to find a tandem repeat segment, why would you pick one choice other another?arrow_forwardThe two main functions of biometrics are ___________and _________ .arrow_forward
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