Fingerprint Patterns

What is NOT one of the three basic patterns of fingerprints?

• Loop

• Whorl

• Arch

• Swirl

What percentage of fingerprints are loops?

• 65%

• 20%

• 50%

• 10%

What is a radial loop?

• When the loop opens towards the pinky, which is toward the ulna.

• When the loop opens towards the thumb, which is toward the ulna.

• When the loop opens towards the pinky, which is toward the radius.

• When the loop opens towards the thumb, which is toward the radius.

What is a ulnar loop?

• When the loop opens towards the thumb, which is toward the radius.

• When the loop opens towards the thumb, which is toward the ulna.

• When the loop opens towards the pinky, which is toward the ulna.

• When the loop opens towards the pinky, which is toward the radius.

When a fingerprint has one or more ridge entering from one side, curving, and then going out from the same side it entered it can be classified as:

• arch

• loop

• whorl

When a fingerprint contains at least 2 deltas and 1 core it can be classified as:

• Loop

• Arch

• Whorl

When all ridges enter on one side and exit on the other, contain NO delta or core, and are the least common they can be classified as:

• Arch

• Whorls

• Loop

What does AFIS use to compare fingerprints and determine a match?

• Minutiae

• Bifurcation

• Delta and Core

• Basic patterns

What is minutiae?

• Fine structure of ridge characteristics (ridge classifications)

• The basic patterns of fingerprints

• Where the delta and core are located

What is NOT a subcategories of a whorl?

• Central pocket loop

• Double loop

• Accidental

• Ulnar