Forensics Hair & Fiber Review

The protein that makes up hair is called _____

• ninhydrin
• pigments 
• medulla
• keratin

Tags

NGSS.MS-LS3-1

The deepest layer of hair (compared to the lead of a pencil) is the ___

• medulla
• cortex
• cuticle
• keratin 

The middle layer of a hair (compared to the wood of a pencil) is the __

• medulla
• cortex
• cuticle
• keratin

The outside layer of a hair (compared to the paint on a pencil) is the ___

• medulla

• cortex

• cuticle

• keratin

The name for man-made fibers is:

• processed fibers
• synthetic fibers
• natural fibers
• modified fibers

Tags

NGSS.MS-PS1-3

In which phase of hair growth is hair actively growing?

• anagen
• catagen
• telogen
• melanen

What can be said about hair that is in the anagen phase, is no longer in the scalp and has follicular tissue attached?

• the hair has been forcibly removed
• the hair fell out of the scalp
• the hair has been bleached to often and has died
• the hair died from being too dry

Fibers that have spun together are called

• a textile
• yarn
• a mineral fiber
• a fiber

When fibers are transferred directly from victim to suspect or suspect to victim, this is called:

• necessary transfer.
• direct transfer
• absolute transfer.
• None of these choices.

Fibers are classified as either:

• natural fibers or synthetic fibers.
• polymers or synthetic fibers.
• acrylic fibers or plant fibers.
• olefins or synthetic fibers