Hair Evidence

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

• Root

• Medulla

• Crown

• Cortex

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

• width of cortex and the width of the medulla

• length of the entire hair and the pattern of pigmentation

• width of the medulla and the width if the hair

• scale diameter of cuticle and the length of the hair

The outermost layer of hair is called the

• cuticle

• cortex

• keratin

• medulla

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

• cuticle

• cortex

• medulla

• shaft

Which of the following is NOT a layer of the hair shaft?

• cuticle

• follicle

• cortex

• medulla

The outermost layer of hair is called the

• cuticle

• cortex

• keratin

• medulla

What is Keratin?

• Protein

• Mineral

• Carbohydrate

• Phosphate

Tags

NGSS.MS-LS3-1

Pigment that gives hair its color...

• carotene
• hemoglobin
• melanin
• chlorophyll

Tags

NGSS.MS-LS3-1

Which part of the hair can be analyzed for DNA?

• Root

• Cuticle

• Cortex

• Medulla

The period of active hair growth is called the ___ stage

• dormant
• telogen
• anagen
• catagen