
Hair Analysis Review & Reinforcement
Authored by Nicole Hidalgo
Science
12th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer the questions below: What are the three parts of the hair shaft?
Cuticle, cortex, medulla
Follicle, shaft, tip
Keratin, pigment, cuticle
Root, bulb, cortex
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer the questions below: An investigator finds a hair with the follicle attached while searching for evidence at a crime scene. Why might the investigator be excited?
The attached follicle may provide nuclear DNA for individual identification
The attached follicle shows the hair is animal, narrowing suspects
The attached follicle makes the hair longer, improving timeline estimates
The attached follicle ensures the hair will have a continuous medulla
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer the questions below: What protein gives hair its strength?
Keratin
Collagen
Elastin
Actin
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer the questions below: Which statement best explains the function of the three parts of the hair shaft?
Cuticle protects the shaft, cortex provides color and strength, medulla is the central core that may aid in species identification
Cuticle gives color, cortex protects the shaft, medulla stores nutrients
Cuticle produces keratin, cortex controls growth rate, medulla determines hair shape
Cuticle anchors the hair, cortex creates the follicle, medulla attaches to skin
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer the questions below: Which option lists three microscopic properties of hair and three macroscopic properties of hair?
Microscopic: medulla pattern, cuticle scale type, pigment granules; Macroscopic: color, length, curliness
Microscopic: hair color, hair length, hair diameter; Macroscopic: medulla type, cuticle scales, pigment granules
Microscopic: root shape, follicle depth, hair angle; Macroscopic: mitochondrial DNA, keratin type, amino acid sequence
Microscopic: shaft circumference, hair weight, hair age; Macroscopic: medulla continuity, scale pattern, granule type
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Approximately 91 days
Approximately 40 days
Approximately 64 days
Approximately 120 days
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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