Hair and Fiber Analysis | Baamboozle - Baamboozle

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Study Slideshow

Which one is not a layer of the hair shaft?

cortex

medulla

cuticle

follicle

15

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

follicle shape

bulb size

shaft lenghth

scale pattern

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

medulla

cortex

15

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

cortex

root

shaft

medulla

15

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

Less than

Equal to

Greater than

The same as

15

Medullae may be classified as being..

interrupted or absent

fragmented

continuous

all of the above

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

his examination reveals that the hair is that of a male

a suspect hair comes from a particular animal species

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 length of the hair

whether the hair is bleached

the results of DNA analysis performed on the root structure

whether the hair was dyed

15

The most prevalent natural plant fiber is...

linen

cotton

silk

hemp

15

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

acrylic

cotton

polyester

nylon

15

Which is NOT a synthetic fiber

All of them are synthetic

Rayon

Polyester

Acrylic

15

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

shake off all garments to be sent for examination

vacuum each item

package all items together

avoid cross-contamination of evidence

15

The rate of human hair growth per month is

1 inch

1 ml

1 cm

2 inches

15

Before the 20th century, all fibers were

natural

derived

chemically treated

synthtic

15

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

the cortex

the cuticle

the root

the follicle

15