Hair Analysis

Front

What makes hairs and fibers an excellent source of trace evidence?

Back

They are easily transferred from victim to suspect.

Front

What are the three layers of hair?

Back

Medulla, Cortex, and Cuticle.

Front

What is the tough outer covering of a hair composed of overlapping scales?

Back

Cuticle.

Front

What is the average length of human hair growth per month?

Back

1 cm.

Front

Does hair always contain DNA?

Back

False.

Front

What is the medulla in hair structure?

Back

The innermost layer of hair, which can vary in thickness and presence.

Front

What is the cortex in hair structure?

Back

The middle layer of hair that contains fibrous proteins and gives hair its strength and color.

Front

What is the cuticle in hair structure?

Back

The outermost layer of hair that protects the inner layers.

Front

How can hair be collected as evidence?

Back

By using tweezers or tape to avoid contamination.

Front

What is the significance of hair comparison in forensic science?

Back

It helps to link a suspect to a crime scene or victim.