WorksheetsForensic Hair Analysis Quiz
Total questions: 15
Worksheet time: 8mins
Which microscopic characteristic is NOT typically examined during forensic hair analysis?
Medulla pattern
DNA sequence
Cortex texture
Cuticle scale pattern
What is the primary function of the medulla in a hair shaft?
Provides structural support
Contains melanin pigments
Creates an air-filled core
Protects the outer layer
Which chemical treatment can significantly alter hair's evidential value?
Permanent waves
Hair dye
Straightening
All treatments equally affect analysis
Which part of the hair contains genetic material suitable for DNA analysis?
Hair shaft
Root bulb
Cuticle
Medulla
Which factor can affect the reliability of hair comparison analysis?
Examiner's experience
Sample preservation
Hair color
Length of hair
What characteristic best indicates natural hair color?
Cortex pigmentation
Surface reflection
Medulla pattern
Cuticle texture
How long can hair evidence typically survive in favorable conditions?
Several months
Several years
Several decades
Indefinitely
Which population group typically has the most circular hair cross-section?
African descent
Asian descent
European descent
Australian Aboriginal
Which feature is NOT visible under a light microscope?
Color banding
DNA structure
Root characteristics
Scale patterns
What can cause artificial changes to hair structure?
Environmental exposure
Chemical treatments
Mechanical damage
Bacterial decomposition
What determines the shape of the hair shaft?
Follicle shape
Genetic factors
Environmental factors
Age of individual
Which characteristic is most variable between different body regions?
Diameter
Color
Length
Chemical composition
What is the primary limitation of hair evidence?
Collection difficulty
Storage requirements
Individual identification
Analysis cost
Which factor does NOT affect hair growth rate?
Age
Blood type
Hormones
Nutrition
Which analysis method is most useful for determining hair damage?
DNA analysis
Scanning electron microscopy
Light microscopy
Chemical testing
