Front

What is the scale pattern of hair that resembles a petal-like structure?

Back

Spinous

Front

What protein is the hair shaft primarily composed of?

Back

Keratin

Front

Does hair always contain DNA?

Back

False

Front

What is trace evidence in forensic science?

Back

Small but measurable amounts of physical or biological material found at a crime scene.

Tags

NGSS.HS-PS1-3

Front

What is the oldest part of the hair?

Back

Tip

Front

What are the three main parts of a hair strand?

Back

Cuticle, Cortex, Medulla.

Front

What is the function of the cuticle in hair?

Back

The cuticle protects the inner layers of the hair and helps to prevent damage.

Front

What is the medulla in hair?

Back

The medulla is the central core of a hair fiber, which may be absent in some types of hair.

Front

What type of evidence can hair provide in a forensic investigation?

Back

Hair can provide class evidence and, in some cases, individual evidence if DNA is present.

Front

What is the difference between anagen, catagen, and telogen phases of hair growth?

Back

Anagen is the growth phase, catagen is the transitional phase, and telogen is the resting phase.