Forensics Unit 4: Fingerprints

Front

What is a plain whorl in fingerprint patterns?

Back

A plain whorl is a circular spiral pattern found in fingerprints, characterized by a central core and two deltas.

Front

Where are fingerprints created in the skin?

Back

Fingerprints are created in the basal layer of the epidermis.

Front

What is a double bifurcation in fingerprint minutiae?

Back

A double bifurcation is a minutiae pattern where a single ridge splits into two separate ridges, resembling a fork.

Front

What percentage of the population has whorl fingerprint patterns?

Back

Approximately 30% of the population has whorl fingerprint patterns.

Front

What is an 'eye' in fingerprint minutiae?

Back

An 'eye' is a minutiae pattern that resembles a small circular or oval shape within a ridge.

Front

What are the three main types of fingerprint patterns?

Back

The three main types of fingerprint patterns are loops, whorls, and arches.

Front

What is the significance of deltas in fingerprint analysis?

Back

Deltas are points where ridge lines diverge, and they are crucial for classifying fingerprint patterns.

Front

How do loops differ from whorls in fingerprints?

Back

Loops enter from one side, curve around, and exit the same side, while whorls form circular patterns with two deltas.

Front

What is the role of the basal layer in fingerprint formation?

Back

The basal layer is where the dermal papillae form, creating the unique patterns of fingerprints.

Front

What is a ridge ending in fingerprint minutiae?

Back

A ridge ending is a type of minutiae where a ridge terminates abruptly.