Fingerprints

Front

What is a fingerprint?

Back

A fingerprint is an impression or mark made by the pattern of ridges and valleys on the skin of a fingertip, unique to each individual.

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 a delta in fingerprint analysis?

Back

A delta is a triangular region found in some fingerprint patterns, indicating the point where ridge lines diverge.

Front

How many deltas are found in a plain arch pattern?

Back

Zero.

Front

What is the most common fingerprint pattern?

Back

The loop pattern is the most common fingerprint pattern.

Front

What is a hook minutiae in fingerprints?

Back

A hook is a type of minutiae that resembles a small hook or bend in the ridge.

Front

What is the difference between a radial loop and an ulnar loop?

Back

A radial loop opens towards the thumb (radial side), while an ulnar loop opens towards the little finger (ulnar side).

Front

Which fingerprint pattern is considered the rarest?

Back

The arch pattern is considered the rarest fingerprint pattern.

Front

What is a whorl fingerprint pattern?

Back

A whorl fingerprint pattern consists of circular or spiral ridge patterns, with at least two deltas.

Front

What is the significance of minutiae in fingerprint analysis?

Back

Minutiae are specific ridge characteristics that help in the identification and comparison of fingerprints.