Hair and Fiber Analysis | Baamboozle - Baamboozle

26 Public

k

Study Slideshow

Which one is not a layer of the hair shaft?

cuticle

cortex

follicle

medulla

15

Which feature of hair is MOST important in making species identification?

scale pattern

bulb size

shaft lenghth

follicle shape

15

A cast of a hair surface can be made by using...

iodine

paint

wax

clear nail polish

15

Pigment granules that impart hair with color are found in the...

cuticle

medulla

cortex

15

The central canal running through many hairs is known as the...

medulla

cortex

root

shaft

15

The medullary index of human hair is ______the medullary index for most other animals.

Equal to

The same as

Less than

Greater than

15

Medullae may be classified as being..

fragmented

all of the above

interrupted or absent

continuous

15

If hair does not have DNA, an expert witness is on best scientific footing when stating that...

the hair in question comes from a 21-year old

a suspect hair comes from a particular animal species

his examination reveals that the hair is that of a male

the given hair comes from a specific person

15

Determining whether a hair sample originated from male or female, the MOST important factor is:

the results of DNA analysis performed on the root structure

the length of the hair

whether the hair is bleached

whether the hair was dyed

15

The most prevalent natural plant fiber is...

cotton

silk

linen

hemp

15

A fiber's microscopic appearance being ribbon-like in shape with twists at irregular intervals:

polyester

cotton

acrylic

nylon

15

Which is NOT a synthetic fiber

Polyester

Acrylic

Rayon

All of them are synthetic

15

In the collection of fiber evidence, great care should be taken to..

package all items together

vacuum each item

shake off all garments to be sent for examination

avoid cross-contamination of evidence

15

The rate of human hair growth per month is

2 inches

1 ml

1 inch

1 cm

15

Before the 20th century, all fibers were

chemically treated

natural

derived

synthtic

15

The portion of the hair containing its scales is best characterized by

the follicle

the root

the cortex

the cuticle

15