Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 15, Problem 14TYU
Summary Introduction
To determine: The suspect’s DNA that matches the evidence as shown in the given figure.
Introduction: Short tandem repeats (STRs) are 3-7 base pairs repetitive sequence elements that are scattered throughout the human genome. These polymorphic loci can be amplified and compared with the standard sample to know about the origin of biological samples.
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Loaded into first lane of this gel is a DNA sample from a crime scene. The rest of the lanes
contain DNA samples from various suspects. Which suspect was likely present at the crime
scene?
Spec
1
Dad
1
Spect
Hilang
I
Spect
11
You are a forensic scientist in charge of DNA samples in a case where a man was murdered. You conduct gel electrophoresis on the samples to determine the DNA profile of the samples. The rows of bands have been marked to make it easier to reference the bands. The sample marked 'evidence' came from under the victim's fingernails, likely indicating a struggle. There are two suspects in the case, both of whom are brothers, they are marked suspect 1 and suspect 2, for brother 1 and brother 2, respectfully. Does the evidence collected match the DNA profiles of either brother? If yes, which one? If no, then would it be likely that the actual criminal is a family member of the brothers? If yes, what could the relation be (mom, dad, cousin, aunt, or uncle)?
Note: there is a sister in their family, their parents are both still alive, and they have a robust extended family. The brothers are not twins.
Questions:
Answer questions 1 to 3 about this gel electrophoresis.
1. Which color represents the smallest DNA fragment?
(explain)
2. If “A" is the crime scene and B to E are suspects. Do
you have any match? (Why or Why not)
3. Is there a possibility that any of the suspect related
to the person who committed the crime? Explain.
Chapter 15 Solutions
Biology (MindTap Course List)
Ch. 15.1 - Prob. 1LOCh. 15.1 - Explain how gel electrophoresis is used to...Ch. 15.1 - Describe how PCR is used to amplify a specific...Ch. 15.1 - Compare the possible differences between a...Ch. 15.1 - Prob. 1CCh. 15.1 - Different forms of a protein are produced in the...Ch. 15.1 - What advantages does the PCR method have over gene...Ch. 15.2 - Describe the features of a typical CRISPR locus in...Ch. 15.2 - Explain the function of CRISPR in bacterial cells.Ch. 15.2 - Compare CRISPR-based endonucleases with...
Ch. 15.2 - Prob. 8LOCh. 15.2 - Prob. 1CCh. 15.2 - Prob. 2CCh. 15.2 - Prob. 3CCh. 15.3 - Prob. 9LOCh. 15.3 - Prob. 10LOCh. 15.3 - Discuss how qPCR, DNA microarrays (DNA chips), and...Ch. 15.3 - Explain how you would compare the expression of a...Ch. 15.3 - Prob. 2CCh. 15.4 - Describe how genome-wide association studies have...Ch. 15.4 - Explain how targeted gene silencing and knockout...Ch. 15.4 - Prob. 1CCh. 15.5 - Describe at least one important application of DNA...Ch. 15.5 - Prob. 1CCh. 15.5 - What are short tandem repeats (STRs), and why are...Ch. 15.5 - Why do gene targeting and mutagenesis screening in...Ch. 15.6 - Prob. 15LOCh. 15.6 - Prob. 16LOCh. 15.6 - Prob. 1CCh. 15.6 - Prob. 2CCh. 15.7 - Describe at least two safety issue associated with...Ch. 15.7 - What are some of the environment concerns...Ch. 15 - A plasmid (a) can be used as a DNA vector (b) is a...Ch. 15 - DNA molecules with complementary sticky ends...Ch. 15 - Prob. 3TYUCh. 15 - Which technique rapidly replicated specific DNA...Ch. 15 - Prob. 5TYUCh. 15 - A cDNA clone contains (a) introns (b) exons (c)...Ch. 15 - Prob. 7TYUCh. 15 - Gel electrophoresis separates nucleic acids on the...Ch. 15 - A CRISPR locus in a bacterium contains (a) short...Ch. 15 - DNA molecular with complementary sticky ends...Ch. 15 - These highly polymorphic molecular markers are...Ch. 15 - Prob. 12TYUCh. 15 - Prob. 13TYUCh. 15 - Prob. 14TYUCh. 15 - EVOLUTION LINK DNA technology, such as the...Ch. 15 - SCIENCE, TECHNOLOGY, AND SOCIETY What are some...
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- I’m having trouble finding the correct answer of which person was had the sample the in crime scene can help solve this rflp?arrow_forwardThe following gel shows the results of a crime scene investigation. Lane 1 shows a DNA sample that was obtained from the scene of a crime (there was evidence of the criminal cutting himself, so it's the criminal's blood sample that produced the DNA bands in lane 1). Lanes 2-7 shows a DNA sample from six potential suspects held in connection with the crime. Arrange the bands labeled A, B, C, D from largest to smallest. 1 2 3 4 5 6 7 OC, A, D, B A, B, C, D OB, D, A, C O D, A, C, Barrow_forwardSCENARIO: You are police investigator assigned to solve a case of house robbery. In your investigation, you discovered a small quantity of blood and a sample of skin in a piece of broken galss from the window where the thief entered. However, these blood and skin samples from insufficient to yield conclusive results. NO USABLE FINGERPRINTS WERE EVEN OBTAINED QUESTION: What can you do with these samples to help you identify the prime suspect? Please be justify the procedures :)arrow_forward
- Having trouble with this assignment we need to use CER and the evidence is in the photo including the question plz help, thank you.arrow_forwardTHe DNA profiles of five people potentially involved in a robbery are shown in DNA Profile #2. The profile on the left side was obtained from DNA belongíng the robber. The four other profiles were obtained from the suspects. Which of the potential suspects is most likely the robber?arrow_forward1) Make up a crime scene scenario (or find a real one) in which DNA from a nonhuman provided critical evidence.arrow_forward
- DOX Crime Scene DNA Fingerprint 11. What can you conclude about sample A's involvement in the crime based on the DNA fingerprint? 12. What can you conclude about samples B and D based on the DNA fingerprint? 13. What can you conclude about sample C's involvement in the crime based on the DNA fingerprint? BC D Paternity DNA Fingerprint 14. What percent of a child's DNA fragments will match their father's? 15. Which of the four men (samples A-D) is the child's father based on the paternity gel? uu wuI see two Ewo cut edges if you cut a hose lengthwise, 7 Dielopre migrafeom (mm) e microscope cut in cross-section or 0WARD'S Natural Science Establishment, Inc. All Rights Reserved "gurv Itier (A-G) on the tissue figures page (page 4) best depicts the tissue you see under the microscope? U 7. What is the term for fhul I || | IL|| I |||| Victim Crime Scenearrow_forwardRefer to the DNA profiles comparing the DNA obtained from the three suspects with the crime-scene DNA. Use a ruler to align the bands found under the crime-scene DNA with any of the bands found in the suspects’ DNA. Place the ruler at the bottom of the bands. Take notes on whether any of the suspects’ DNA shares the same bands as the crime-scene DNA. Analyze your notes on each suspect’s DNA profile. Do any suspects share all the DNA bands found in the evidence DNA?arrow_forwardBased on the bands in the image below, which suspect was at the crime scene? Crime DNA Supeets Suspect 1 Suspect 2 Suspect 3 Suspect 1arrow_forward
- SCENARIO: You are police investigator assigned to solve a case of house robbery. In your investigation, you discovered a small quantity of blood and a sample of skin in a piece of broken galss from the window where the thief entered. However, these blood and skin samples from insufficient to yield conclusive results. No usable fingerprints were even obtained. QUESTION: What can you do with these samples to help you identify the prime suspect? Please be specfic :)arrow_forwardcorrect the wrong ones and verify the right ones.arrow_forwardVIDU If only one person can be the prime suspect, how can the other five suspects be eliminated based on the evidence presented. How? (One sentence or less per suspect)arrow_forward
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