Ch. 5 Hair Analysis - Jeffrey Bierce | Biblioteka

1

When being compared to a wooden pencil, which part of hair represents the lead?

cuticle

cortex

follicle

medulla

1

The transitional or regressive stage that lasts a few weeks which hair growth slows is callws

telogen

metagen

catagen

anagen

1

The hair follicle is dormant and hairs are easily lost during which stage of the hair cycle?

metagen

catagen

anagen

telogen

1

We know hair is human if ...

the cuticle is coronal

the medulla is fragmented

the medullary index is 0.33 or less

the medullary index is 0.5 or greater

1

Hair is helpful in solving old crimes because ...

hair always contains DNA

hair on a suspect never changes

hair does not easily decompose

hair takes little room to store in evidence closets

1

The hair shaft is composed of what important protein?

peptidoglycan

keratin

chitin

cellulose

1

The medulla pattern in the above hair sample is

continuous

fragmented

interrupted

5

Using the image above, match the type of medulla pattern with the correct letter.

Stavka koja se može prevući		Odgovarajuća stavka
Continuous Animal		E
Interrupted		D
stacked		A
Continuous Human		B
Fragmentary		C

1

Hair analysis may be used to determine all of the following except:

indentity of the individual from which the hair came from

broad racial background of the individual from which the hair came

manner in which the hair was removed

body region from which the hair came from

1

When collecting hairs from a suspect to compare to those found at a crime scene, how many hairs should be collected?

25 from head, 75 from arms, legs and pubic area

100 from all over the body

50 from head, 25 from pubic region

75 from head, 25 from pubic region

1