Quick Lab 1 2 3 4 5 6 7 89 10 11 12 Forensic DNA Fingerprints DNA “fingerprinting" is useful in forensics because it can be performed on a sample of DNA from body tissues such as hair or blood. Samples can be compared to find genetically identical or closely related people. Identical segments of DNA will form identical patterns of bands in the columns of a DNA fingerprint, as shown here. 1 Control 3 Sample from Analysis crime scene 1. Identify the number of individuals whose DNA samples are being analyzed in this DNA fingerprint. 4 Victim 6 Standard 2. CRTICAL THINKING Interpreting Graphics Identify the suspect sample that matches the sample from the crime scene. size marker 1. CATICAL THINKING Analyzing Methods Column 6 shows an array of DNA segments sorted by increasing length. iopose a purpose for these columns in this method. 8 Suspect A 9 Suspect B 10 Suspect C 12 Suspect D

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**QuickLab: Forensic DNA Fingerprints**

**Forensic DNA Fingerprints**

DNA "fingerprinting" is useful in forensics because it can be performed on a sample of DNA from body tissues such as hair or blood. Samples can be compared to find genetically identical or closely related people. Identical segments of DNA will form identical patterns of bands in the columns of a DNA fingerprint, as shown here.

**Analysis**
1. **Identify** the number of individuals whose DNA samples are being analyzed in this DNA fingerprint.
2. **Critical Thinking: Interpreting Graphics** Identify the suspect sample that matches the sample from the crime scene.
3. **Critical Thinking: Analyzing Methods** Column 6 shows an array of DNA segments sorted by increasing length. Propose a purpose for these columns in this method.

**DNA Fingerprint Diagram**

The diagram on the right portrays DNA fingerprints with 12 columns labeled at the top from 1 to 12. The rows show various band patterns representative of DNA samples from different individuals or sources. The significance of each column is noted in a box to the side:
- Column 1: Control
- Column 3: Sample from crime scene
- Column 4: Victim
- Column 6: Standard size marker
- Column 8: Suspect A
- Column 9: Suspect B
- Column 10: Suspect C
- Column 12: Suspect D

The distinct bands, which appear as horizontal bars in each column, represent different DNA fragments that have been separated by size. The 'Standard size marker' in Column 6 acts as a reference to measure and compare the lengths of DNA fragments. Accurate identification relies on comparing the band patterns of suspect samples to the sample from the crime scene.
Transcribed Image Text:**QuickLab: Forensic DNA Fingerprints** **Forensic DNA Fingerprints** DNA "fingerprinting" is useful in forensics because it can be performed on a sample of DNA from body tissues such as hair or blood. Samples can be compared to find genetically identical or closely related people. Identical segments of DNA will form identical patterns of bands in the columns of a DNA fingerprint, as shown here. **Analysis** 1. **Identify** the number of individuals whose DNA samples are being analyzed in this DNA fingerprint. 2. **Critical Thinking: Interpreting Graphics** Identify the suspect sample that matches the sample from the crime scene. 3. **Critical Thinking: Analyzing Methods** Column 6 shows an array of DNA segments sorted by increasing length. Propose a purpose for these columns in this method. **DNA Fingerprint Diagram** The diagram on the right portrays DNA fingerprints with 12 columns labeled at the top from 1 to 12. The rows show various band patterns representative of DNA samples from different individuals or sources. The significance of each column is noted in a box to the side: - Column 1: Control - Column 3: Sample from crime scene - Column 4: Victim - Column 6: Standard size marker - Column 8: Suspect A - Column 9: Suspect B - Column 10: Suspect C - Column 12: Suspect D The distinct bands, which appear as horizontal bars in each column, represent different DNA fragments that have been separated by size. The 'Standard size marker' in Column 6 acts as a reference to measure and compare the lengths of DNA fragments. Accurate identification relies on comparing the band patterns of suspect samples to the sample from the crime scene.
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