2A Forensics Unit 3 Summative - Exam #3

Front

What is Ninhydrin spray used for in forensics?

Back

Ninhydrin spray is used on porous surfaces to develop fingerprints by reacting with amino acids, turning them purple.

Front

What are the two types of loop patterns in fingerprints?

Back

The two types of loop patterns are Ulnar Loops and Radial Loops.

Front

Can fingerprints be permanently erased?

Back

No, fingerprints can only be temporarily erased; they will grow back.

Front

When are fingerprints formed?

Back

Fingerprints are formed in utero before a person is born.

Front

What is the term for a fingerprint minutiae that splits into two ridges?

Back

Bifurcation.

Front

What is the primary component that Ninhydrin reacts with to reveal fingerprints?

Back

Amino acids.

Front

What is the difference between Ulnar and Radial Loops?

Back

Ulnar Loops open towards the little finger, while Radial Loops open towards the thumb.

Front

What is the significance of fingerprint minutiae in forensic science?

Back

Minutiae are unique features in fingerprints that help in identifying individuals.

Front

What are the main types of fingerprint patterns?

Back

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

Front

What is the role of chemicals in fingerprint analysis?

Back

Chemicals like Ninhydrin are used to develop and visualize latent fingerprints.