2nd Qtr Final Exam

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What is a synthetic fiber?

Back

A synthetic fiber is a man-made fiber created from chemical processes, as opposed to natural fibers which are derived from plants or animals. An example is rayon.

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What are the three principles of fingerprints?

Back

1. A fingerprint is an individual characteristic. 2. A fingerprint pattern will remain unchanged during an individual's lifetime. 3. Fingerprints have general ridge patterns to identify them.

Front

What is the Medulla in hair structure?

Back

The medulla is the innermost layer of the hair shaft, which may be absent in some hair types. It plays a role in the hair's strength and texture.

Front

What is Locard's Exchange Principle?

Back

Locard's Exchange Principle states that 'Every contact leaves a trace,' meaning that whenever two objects come into contact, there is always a transfer of material.

Front

What is a double loop whorl fingerprint?

Back

A double loop whorl is a fingerprint pattern that consists of two loops that swirl around each other, creating a unique design.

Front

What is the difference between natural and synthetic fibers?

Back

Natural fibers are derived from plants or animals (e.g., cotton, wool), while synthetic fibers are man-made from chemical processes (e.g., polyester, nylon).

Front

What is the significance of fingerprints in forensic science?

Back

Fingerprints are unique to each individual and can be used to identify suspects and link them to crime scenes.

Front

What are the general ridge patterns in fingerprints?

Back

The general ridge patterns in fingerprints include loops, whorls, and arches, which help in classifying and identifying fingerprints.

Front

What is the cortex in hair structure?

Back

The cortex is the middle layer of the hair shaft, containing fibrous proteins and melanin, which gives hair its color and strength.

Front

What is the role of the cuticle in hair structure?

Back

The cuticle is the outermost layer of the hair shaft, consisting of overlapping cells that protect the inner layers and contribute to the hair's shine.