Hair as Forensic Evidence

The central core of the hair is called the...?

• Medulla
• Cuticle
• Cortex
• Shaft

The average hair grows how much per month?

• 1.3 cm
• 2.4 cm
• .5 cm
• 3.2 cm

The hair follicle is dormant and hairs are easily lost during which stage of the hair life cycle?

• Anagen
• Telogen
• Catagen
• Metagen

In order to determine if a hair is from an animal or human, one should divide the diameter of the...

• medulla by the entire hair
• medulla by the cortex
• cortex by the medulla
• cortex by the entire hair

Hair is helpful in solving old crimes because…

• hair on a suspect never changes
• hair always contains DNA evidence
• hair takes little room to store in evidence closets
• hair does not easily decompose

When being compared to a wooden pencil, which part of hair represents the wood?

• medulla
• cuticle
• follicular tag
• cortex

The hair shaft is composed of what important protein?

• Cellulose 
• Chitin
• Peptidoglycan
• Keratin

the tough clear outside covering of a hair shaft is

• cuticle
• cortex
• medulla
• polymer

This is the beginning phase of hair growth... 

• Anagen Phase
• Catagen Phase
• Telogen Phase

Hair is commonly used in forensic investigations

• true
• false