Hair and Fiber Analysis | Baamboozle - Baamboozle

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Study Slideshow

Which one is not a layer of the hair shaft?

medulla

cortex

follicle

cuticle

15

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

scale pattern

shaft lenghth

bulb size

follicle shape

15

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

paint

wax

clear nail polish

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...

medulla

shaft

root

cortex

15

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

Greater than

Equal to

Less than

The same as

15

Medullae may be classified as being..

fragmented

continuous

all of the above

interrupted or absent

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:

whether the hair is bleached

the results of DNA analysis performed on the root structure

whether the hair was dyed

the length of the hair

15

The most prevalent natural plant fiber is...

hemp

linen

silk

cotton

15

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

cotton

acrylic

polyester

nylon

15

Which is NOT a synthetic fiber

Polyester

All of them are synthetic

Acrylic

Rayon

15

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

vacuum each item

package all items together

shake off all garments to be sent for examination

avoid cross-contamination of evidence

15

The rate of human hair growth per month is

1 inch

1 cm

1 ml

2 inches

15

Before the 20th century, all fibers were

derived

natural

chemically treated

synthtic

15

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

the cortex

the follicle

the cuticle

the root

15