Which term describes unique identity parts with three features: loops, whorls and arches?

Which term describes unique identity parts with three features: loops, whorls and arches?

• A. Fingerprints
• B. DNA
• C. Iris patterns
• D. Facial features

Answer: (A)

Fingerprints are a way to identify a person because they are unique to each individual and stay the same over a lifetime. The three basic fingerprint patterns—loops, whorls, and arches—describe how the ridges flow on a fingertip. Loops enter from one side, curve, and exit on the same side, usually with a delta. Whorls form circular or spiral patterns with typically two deltas. Arches rise from one side and exit the opposite side with ridges that don’t loop back. Together with many tiny ridge details, these patterns create a distinctive map for each person. Other options refer to different kinds of identifiers (DNA is genetic, iris patterns are in the eye, facial features are overall appearance) and aren’t described by loops, whorls, and arches.

Fingerprints are a way to identify a person because they are unique to each individual and stay the same over a lifetime. The three basic fingerprint patterns—loops, whorls, and arches—describe how the ridges flow on a fingertip. Loops enter from one side, curve, and exit on the same side, usually with a delta. Whorls form circular or spiral patterns with typically two deltas. Arches rise from one side and exit the opposite side with ridges that don’t loop back. Together with many tiny ridge details, these patterns create a distinctive map for each person. Other options refer to different kinds of identifiers (DNA is genetic, iris patterns are in the eye, facial features are overall appearance) and aren’t described by loops, whorls, and arches.