Hair and Fiber Analysis Worksheet
Grade 12 Forensic Science worksheet covering hair and fiber analysis techniques, characteristics, and evidentiary value.
Includes
Standards
Hair and Fiber Analysis
Name:
Date:
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Read each question carefully and provide thorough answers based on your knowledge of forensic hair and fiber analysis.
1. Which part of the hair shaft can provide mitochondrial DNA?
Cuticle
Cortex
Medulla
Follicular Tag
2. Which of the following is a natural fiber derived from an animal source?
Rayon
Cotton
Wool
Nylon
3. The outer layer of the hair shaft, known as the , is made of overlapping scales.
4. The most common natural fiber in forensic investigations is .
5. A microscope is often used to compare the optical properties of different fibers.
6. Describe two characteristics of hair that can help distinguish between human and animal hair.
7. Explain the principle of 'Locard's Exchange Principle' as it applies to hair and fiber evidence at a crime scene.
8. All hair found at a crime scene can be individualized to a specific person.
True
False
9. Synthetic fibers are typically more resistant to degradation than natural fibers.
True
False
Match the fiber type to its description.
10. Cotton
a. Protein fiber from sheep
11. Nylon
b. Plant-based cellulosic fiber
12. Wool
c. Synthetic polyamide fiber