Forensic Hair Analysis Quiz

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