Show What You Know--Microscopes and Hair

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

• Medulla
• Cuticle
• Cortex
• Shaft

When being compared to a wooden pencil, which part of hair represents the outside layer (usually yellow)?

• medulla

• cortex

• cuticle

• follicular tag

The transitional or regressive stage that lasts a few weeks during which hair growth slows is called...?

• Anagen
• Telogen
• Catagen
• Metagen

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

• Anagen
• Telogen
• Catagen
• Metagen

We know hair is from a human if…

• The medullary index is 0.5 or greater           
• The medullary index is 0.33 or less
• The cuticle is coronal
• The medulla is fragmented

The hair shaft is composed of what important protein?

• Cellulose 
• Chitin
• Peptidoglycan
• Keratin

The following medulla pattern is called

• fragmented 
• continuous
• interrupted

True or False: Is it possible to determine what body part hair evidence came from?

• True

• False

What types of DNA can be found on the hair?

• Mitochondrial

• nuclear

• Both mitochondrial and nuclear

• none

The greater the ___________________, the smaller the field you are actually viewing.

• detail

• objective

• magnification

• body