Show:
Sources of Fiber
Characteristics of Fiber
Hair Structure
Whose hair is it anyway?
Hair and Fiber as Evidence
100
Cotton comes from this.
What is a cotton plant?
100

This type of natural fiber is strong and durable. Derived from plants.

What is linen?

100
Melanin granules in the cortex give the hair this quality.
What is its color?
100
This part of the hair can be analyzed for DNA.
What is the root?
100
This is the smallest indivisible unit of a textile.
What is a fiber?
200
Silk comes from this animal.
What is a caterpillar?
200
These are the two most common synthetic fibers.
What are polyester and nylon?
200
The hair shaft is composed of these three parts.
What are the cuticle, cortex, and medulla?
200
This animal's hair, used to make angora, is brown, black, and gray with shell-like scales.
What is a rabbit?
200

The value of this type of fiber evidence in forensic investigation.

What is cotton/useless?

300

A monomer is a small molecule that may bond together to form this material, found in polyester.

What is a polymer?

300
This class of fibers is less heat-resistant.
What is synthetic fibers?
300
This is the outer layer of the hair follicle.
What is the cuticle?
300
Only 2 percent of this mammal's hair is on its head.
What is human?
300
The hair shaft is this kind of evidence.
What is class evidence?
400

These two natural fibers come from goats.

What is mohair and cashmere?

400
What are the names of the threads that run horizontally and vertically in a fabric?
What is warp and weft?
400
This is the period of active hair growth.
What is the anagen stage?
400
This hair treatment results in a yellowish tint to the hair.
What is bleaching?
400

This type of transfer occurs between victim and suspect.

What is direct/cross transfer?

500

This fabric comes from rabbits.

What is angora?

500

Characteristic of these fibers may be twisted with rough edges and scale patterns.

What are natural fibers?

500
This is a skin organ that produces hair.
What is the follicle?
500

Pigment granule that gives rise to black and brown colored hair.

What is eumelanin?

500

Measurement of the medulla and hair diameter to determine animal versus humans.

What is medullary index?