Hair and Fiber Analysis | Baamboozle - Baamboozle

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Study Slideshow

Which one is not a layer of the hair shaft?

cuticle

follicle

cortex

medulla

15

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

shaft lenghth

scale pattern

follicle shape

bulb size

15

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

wax

paint

iodine

clear nail polish

15

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

cortex

medulla

cuticle

15

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

root

medulla

shaft

cortex

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

interrupted or absent

all of the above

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 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...

silk

cotton

hemp

linen

15

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

nylon

polyester

acrylic

cotton

15

Which is NOT a synthetic fiber

Polyester

Rayon

All of them are synthetic

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

avoid cross-contamination of evidence

package all items together

15

The rate of human hair growth per month is

1 ml

1 cm

2 inches

1 inch

15

Before the 20th century, all fibers were

synthtic

chemically treated

derived

natural

15

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

the root

the cortex

the cuticle

the follicle

15