About this Study Set
This study set covers Forensic Science through
20 practice questions.
A rigorous examination of forensic methodologies, chemical analysis, and biological identification techniques. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 20 questions from the
Advanced Forensic Science Principles study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which analytical technique is primarily used to identify volatile organic compounds in fire debris analysis?
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A
High-performance liquid chromatography
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B
Gas chromatography-mass spectrometry
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C
Fourier-transform infrared spectroscopy
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D
Atomic absorption spectroscopy
2
In forensic anthropology, which feature is the most reliable indicator for determining biological sex from skeletal remains?
-
A
The shape of the sternum
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B
The morphology of the pelvis
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C
The length of the humerus
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D
The dental arcade curvature
3
What is the chemical composition of the 'white residue' often found in presumptive tests for cocaine using cobalt thiocyanate?
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A
Cocaine hydrochloride
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B
Cocaine base
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C
Cocaine sulfate
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D
Cocaine nitrate
4
During DNA profiling, which specific genetic marker type is currently the gold standard for human identification in the CODIS system?
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A
Restriction Fragment Length Polymorphism
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B
Short Tandem Repeats
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C
Single Nucleotide Polymorphisms
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D
Variable Number Tandem Repeats
5
Which phase of hair growth is characterized by the cessation of cellular division and follicle shrinkage?
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A
Anagen
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B
Catagen
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C
Telogen
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D
Exogen
6
In bloodstain pattern analysis, what does an 'elliptical' bloodstain shape reveal about the impact angle?
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A
The height of the source
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B
The velocity of the impact
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C
The directionality and impact angle
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D
The blood volume
7
Which reagent is utilized to detect latent bloodstains by producing a chemiluminescent reaction upon contact with heme?
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A
Ninhydrin
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B
Silver nitrate
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C
Luminol
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D
Crystal violet
8
What is the primary function of the 'cortex' in a hair shaft during forensic microscopic analysis?
-
A
Providing the pigment color and structural integrity
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B
Acting as the protective outer layer
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C
Containing the medullary canal
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D
Regulating keratin production
9
In forensic toxicology, which enzyme is most commonly involved in the phase I metabolism of xenobiotics?
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A
Cytochrome P450
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B
Alcohol dehydrogenase
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C
Glutathione S-transferase
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D
N-acetyltransferase
10
What is the critical temperature range for 'glass transition' in the study of forensic polymer analysis?
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A
The temperature where amorphous solids become brittle
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B
The temperature where the polymer melts into a liquid
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C
The range where the material loses its refractive index
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D
The point of thermal degradation
11
Which type of firearm rifling produces a distinctive 'land and groove' impression due to the cutting process?
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A
Broach rifling
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B
Polygonal rifling
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C
Button rifling
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D
Hammer forging
12
What does the 'Kerckhoffs's principle' imply in the context of forensic digital cryptography?
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A
Security should rely on the secrecy of the key, not the algorithm
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B
Encryption must be based on prime number factorization
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C
Digital evidence is immutable if hashed
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D
Steganography is easily detected via entropy analysis
13
Which skeletal feature is used to estimate the age of an adult individual using the Suchey-Brooks system?
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A
Pubic symphysis
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B
Cranial sutures
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C
Clavicle epiphysis
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D
Dental attrition
14
In soil analysis, which mineral is most frequently utilized for 'geological fingerprinting' due to its resistance to weathering?
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A
Zircon
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B
Calcite
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C
Gypsum
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D
Halite
15
What is the primary mechanism of action for the 'Cyanoacrylate fuming' method in latent print development?
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A
Polymerization on the ridges
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B
Oxidation of amino acids
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C
Fluorescence under UV light
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D
Precipitation of silver salts
16
Which forensic instrument is best suited for the elemental analysis of trace glass fragments?
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A
Scanning Electron Microscopy with Energy Dispersive X-ray (SEM-EDX)
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B
Gas Chromatography
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C
Mass Spectrometry
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D
Polarized Light Microscopy
17
What is the term for the tendency of a bullet to follow a curved path due to the rotation imparted by rifling?
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A
Gyroscopic precession
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B
Yaw
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C
Magnus effect
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D
Drag coefficient
18
Which entomological stage is used to estimate the Post-Mortem Interval (PMI) when dealing with necrophagous Diptera?
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A
Larval instar progression
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B
Adult emergence
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C
Pupal eclosion
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D
Egg hatching duration
19
In forensic odontology, which classification system uses the 'FDI World Dental Federation' notation to identify teeth?
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A
ISO 3950
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B
Universal Numbering System
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C
Palmer Notation
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D
Zsigmondy system
20
Which phenomenon explains the separation of components in paper chromatography based on their solubility?
-
A
Differential partitioning
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B
Capillary action
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C
Molecular weight exclusion
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D
Adsorption kinetics
