Hair and Fiber Analysis | Baamboozle - Baamboozle

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Study Slideshow

Which one is not a layer of the hair shaft?

cortex

medulla

follicle

cuticle

15

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

bulb size

shaft lenghth

scale pattern

follicle shape

15

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

wax

clear nail polish

paint

iodine

15

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

cuticle

cortex

medulla

15

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

root

shaft

cortex

medulla

15

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

The same as

Greater than

Less than

Equal to

15

Medullae may be classified as being..

all of the above

interrupted or absent

continuous

fragmented

15

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

the given hair comes from a specific person

a suspect hair comes from a particular animal species

his examination reveals that the hair is that of a male

the hair in question comes from a 21-year old

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

whether the hair was dyed

the length of the hair

whether the hair is bleached

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

Rayon

All of them are synthetic

Polyester

Acrylic

15

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

package all items together

avoid cross-contamination of evidence

shake off all garments to be sent for examination

vacuum each item

15

The rate of human hair growth per month is

2 inches

1 cm

1 ml

1 inch

15

Before the 20th century, all fibers were

synthtic

natural

chemically treated

derived

15

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

the cuticle

the cortex

the root

the follicle

15