Ch 5 Hair Analysis

Last updated over 5 years ago

10 questions

Note from the author:

1

5

1

Last updated over 5 years ago

10 questions

Note from the author:

Forensic hair Analysis

1

5

1

Forensic hair Analysis

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

follicle

cortex

cuticle

medulla

anagen

catagen

telogen

metagen

metagen

anagen

telogen

catagen

the cuticle is coronal

the medullary index is 0.5 or greater

the medullary index is 0.33 or less

the medulla is fragmented

hair does not easily decompose

hair always contains DNA

hair on a suspect never changes

hair takes little room to store in evidence closets

peptidoglycan

keratin

cellulose

chitin

interrupted

fragmented

continuous

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

75 from head, 25 from pubic region

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

100 from all over the body

50 from head, 25 from pubic region

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

follicle

cortex

cuticle

medulla

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

anagen

catagen

telogen

metagen

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

metagen

anagen

telogen

catagen

We know hair is human if ...

the cuticle is coronal

the medullary index is 0.5 or greater

the medullary index is 0.33 or less

the medulla is fragmented

Hair is helpful in solving old crimes because ...

hair does not easily decompose

hair always contains DNA

hair on a suspect never changes

hair takes little room to store in evidence closets

The hair shaft is composed of what important protein?

peptidoglycan

keratin

cellulose

chitin

The medulla pattern in the above hair sample is

interrupted

fragmented

continuous

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

Continuous Animal

E

Fragmentary

D

Continuous Human

A

stacked

B

Interrupted

C

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

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

75 from head, 25 from pubic region

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

100 from all over the body

50 from head, 25 from pubic region