Unit 2 Hair Analysis Review

What are the three main parts of human hair structure?

• Follicle, Root, Shaft

• Medulla, Cortex, Cuticle

• Hair, Skin, Nail

• Epidermis, Dermis, Hypodermis

Which part of the hair contains the medulla, cortex, and cuticle?

• Follicle

• Root

• Shaft

• Tip

What is one function of hair?

What type of DNA can be found in hair?

• Nuclear DNA

• Mitochondrial DNA

• Both A and B

• Neither A nor B

What method is used to analyze the chemical content of hair?

• Gas chromatography

• Mass spectrometry

• X-ray diffraction

• UV spectroscopy

What can the isotope ratio in hair tell us?

• Age

• Diet

• Where someone lived or traveled

• Hair color

What is the minimum PMI that hair can help determine?

• Post Mortem Interval

• Pre Mortem Interval

• Peri Mortem Interval

• None of the above

What is a key difference between animal and human hair?

• Length

• Pigmentation

• Thickness

• Color

The outermost layer of hair is called the

• cuticle

• cortex

• keratin

• medulla

What is the medulla?

• the central core of the hair shaft that may be absent in some species

• the protein rich structure around the central core of the hair shaft that contains pigment

• the outer covering of the hair shaft that is composed of overlapping scales

• part of the brain