Hair Lab

The region of hair located outside of the medulla containing granules of pigment is called

• the cuticle

• the cortex

• the hair follicle

• none of these choices

Hair is considered

• secondary evidence

• tertiary evidence

• class evidence

• individual evidence

Hair can adhere to clothes, carpets and many other surfaces and be transferred to other locations. This is called

• secondary transfer

• primary transfer

• tertiary transfer

• redundant transfer

All mammals have hair. Its main purpose is to:

• regulate body temperature- to keep the body warm by insulating it

• Protect the body from attack

• protect the body from rugged terrain.

• None of these choices

True or False:  All hairs on a person's head are identical.

• True
• False

Tags

NGSS.MS-LS4-4

Which factors are used to calculate the medullary index of the hair?

• diameter of cuticle and length of the hair
• width of the medulla and width of the hair
• length of the hair and pattern of the hair
• width of the cortex and width of the medulla

Human hair has which type of cuticle?

• Spinous
• coronal
• imbricate
• pigmented

The period when hair is naturally shed is called the ______ stage.

• catogen
• telogen
• anagen
• imagen

Which part of the hair can be analyzed for nuclear DNA?

• Shaft
• Follicle
• Medulla
• All of the Above

Animal hair can be distinguished from human hair because animal hair...

• has a smaller medullary index than human hair and no cortex
• does not have a cuticle
• has a greater medullary index and more variation in the cuticle patterns
• always has a continuous medulla pattern