Forensics: Chapter Three Review

All hairs on the head of a person are identical.

False.

Hair is composed of a protein called cellulose.

False.

The cortex may contain pigment granules.

True.

The shaft of the hair is considered class evidence in a trial.

True.

The hair shaft is composed of the cuticle, cortex, and...

a) medulla

Which part(s) of a hair can be analyzed for DNA?

a) root

Neutron activation analysis can check hair for the presence of...

a) silver

Which of the following is most likely a result of hair bleaching?

b) a yellowish tint to the hair

Although variations can occur, which of the following best describes northern European hair?

b) straight with evenly distributed granules

The period of active hair growth is called the ... stage.

c) anagen

Which of the following characteristics is found in typical Asian hair?

c) flattened cross section

The cuticle scales of the hair always point toward the...

c) tip of the hair

Human hair has which type(s) of cuticle?

d) pigmented

Which factors are used to calculate the medullary index of the hair?

d) width of medulla and the width of the hair