PHA 6936 Special Topics in Forensic
Science Quizzes well answered
graded A+ 2025/2026
Who first observed the agglutination of red blood cells with human sera? - ANS ✔✔Landsteiner
List three important aspects of crime scene investigation. - ANS ✔✔Securing the scene,
preventing contamination, and preserving physical evidence.
True or False: Video recording is an acceptable method of recording a crime scene. - ANS
✔✔True
List the five types of search patterns. - ANS ✔✔Grid, Zone, Strip, Spiral, and Quadrant
Which search pattern is typically used underwater? - ANS ✔✔Spiral search
In what part of the body does livor mortis occur? - ANS ✔✔The lowest extremities
True or False: Hydrolyzed body fat can help preserve a body and prevent putrefaction. - ANS
✔✔True
What are the fundamental mechanisms considered necessary to maintain the BBP standard and
are the primary mechanisms for infection control? - ANS ✔✔Universal precautions
List three forms of standard PPE. - ANS ✔✔Eye, hand, and foot protection
,When processing a crime scene, which evidence is collected first? - ANS ✔✔All fragile evidence
True or False: When processing a crime scene, contamination is limited
by controlling access and wearing PPE. - ANS ✔✔True
True or False: Luminol is the agent of choice for detecting the presence of blood stains - ANS
✔✔False
True or False: When using an alternative light source to search for biological fluids, the
wavelength of light used must be opposite that of the color of the stain. - ANS ✔✔True
When using an orange filter on an alternative light source, which biological fluid will fluoresce
white? - ANS ✔✔Vaginal secretions, urine, and semen
True or False: Luminol is considered a presumptive test for blood. - ANS ✔✔True
Which presumptive test for blood reacts with blood proteins to give a light to medium blue
color? - ANS ✔✔Amido Black
Which types of biological samples should never be stored in plastic containers for more than
two hours? - ANS ✔✔Heavily soaked blood stained items
What types of swabs are most common in sexual assault kits? - ANS ✔✔Vaginal, anal, and oral
swabs
True or False: Chain of custody is required for any evidence submitted to court and can be used
to establish the integrity of evidence. - ANS ✔✔True
, For short term storage, liquid blood samples should be kept at what temperature (room
temperature, refrigerated, or frozen)? - ANS ✔✔Refrigerated
The cellulose based paper, used for the storage of whole blood, that prevents DNA degradation
and microbial breakdown is known as what? - ANS ✔✔FTA paper
Erythrocytes are also known as what component of blood? - ANS ✔✔Red blood cells
What is the most abundant protein in serum? - ANS ✔✔Albumin
What is the function of red blood cells? - ANS ✔✔Tissue oxygenation
What is the function of albumin? - ANS ✔✔To maintain appropriate osmotic pressure
True or False: Mature red blood cells do not contain DNA. - ANS ✔✔True
True or False: The Phenolphthalein presumptive test is more sensitive than Luminol. - ANS
✔✔False
What color does tetramethylbenzidine turn in a positive reaction? - ANS ✔✔Blue
True or False: An ALS (alternate light source) can be used to search for
blood because blood fluoresces. - ANS ✔✔False
Which test is one of the most common confirmatory tests for blood? - ANS ✔✔Takayama test
Science Quizzes well answered
graded A+ 2025/2026
Who first observed the agglutination of red blood cells with human sera? - ANS ✔✔Landsteiner
List three important aspects of crime scene investigation. - ANS ✔✔Securing the scene,
preventing contamination, and preserving physical evidence.
True or False: Video recording is an acceptable method of recording a crime scene. - ANS
✔✔True
List the five types of search patterns. - ANS ✔✔Grid, Zone, Strip, Spiral, and Quadrant
Which search pattern is typically used underwater? - ANS ✔✔Spiral search
In what part of the body does livor mortis occur? - ANS ✔✔The lowest extremities
True or False: Hydrolyzed body fat can help preserve a body and prevent putrefaction. - ANS
✔✔True
What are the fundamental mechanisms considered necessary to maintain the BBP standard and
are the primary mechanisms for infection control? - ANS ✔✔Universal precautions
List three forms of standard PPE. - ANS ✔✔Eye, hand, and foot protection
,When processing a crime scene, which evidence is collected first? - ANS ✔✔All fragile evidence
True or False: When processing a crime scene, contamination is limited
by controlling access and wearing PPE. - ANS ✔✔True
True or False: Luminol is the agent of choice for detecting the presence of blood stains - ANS
✔✔False
True or False: When using an alternative light source to search for biological fluids, the
wavelength of light used must be opposite that of the color of the stain. - ANS ✔✔True
When using an orange filter on an alternative light source, which biological fluid will fluoresce
white? - ANS ✔✔Vaginal secretions, urine, and semen
True or False: Luminol is considered a presumptive test for blood. - ANS ✔✔True
Which presumptive test for blood reacts with blood proteins to give a light to medium blue
color? - ANS ✔✔Amido Black
Which types of biological samples should never be stored in plastic containers for more than
two hours? - ANS ✔✔Heavily soaked blood stained items
What types of swabs are most common in sexual assault kits? - ANS ✔✔Vaginal, anal, and oral
swabs
True or False: Chain of custody is required for any evidence submitted to court and can be used
to establish the integrity of evidence. - ANS ✔✔True
, For short term storage, liquid blood samples should be kept at what temperature (room
temperature, refrigerated, or frozen)? - ANS ✔✔Refrigerated
The cellulose based paper, used for the storage of whole blood, that prevents DNA degradation
and microbial breakdown is known as what? - ANS ✔✔FTA paper
Erythrocytes are also known as what component of blood? - ANS ✔✔Red blood cells
What is the most abundant protein in serum? - ANS ✔✔Albumin
What is the function of red blood cells? - ANS ✔✔Tissue oxygenation
What is the function of albumin? - ANS ✔✔To maintain appropriate osmotic pressure
True or False: Mature red blood cells do not contain DNA. - ANS ✔✔True
True or False: The Phenolphthalein presumptive test is more sensitive than Luminol. - ANS
✔✔False
What color does tetramethylbenzidine turn in a positive reaction? - ANS ✔✔Blue
True or False: An ALS (alternate light source) can be used to search for
blood because blood fluoresces. - ANS ✔✔False
Which test is one of the most common confirmatory tests for blood? - ANS ✔✔Takayama test
