PHA 6936 SPECIAL TOPICS IN FORENSIC SCIENCE NEWEST ACTUAL
2025/2026 EXAM WITH COMPLETE QUESTIONS AND ANSWERS
VERIFIED/ GUARANTEED PASS.
What types of swabs are most common in sexual assault kits? - ------
Answers----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. - ------
Answers----True
For short term storage, liquid blood samples should be kept at what
temperature (room temperature, refrigerated, or frozen)? - ------
Answers----Refrigerated
The cellulose based paper, used for the storage of whole blood, that
prevents DNA degradation and microbial breakdown is known as what?
- ------Answers----FTA paper
Erythrocytes are also known as what component of blood? - ------
Answers----Red blood cells
What is the most abundant protein in serum? - ------Answers----
Albumin
What is the function of red blood cells? - ------Answers----Tissue
oxygenation
What is the function of albumin? - ------Answers----To maintain
appropriate osmotic pressure
,True or False: Mature red blood cells do not contain DNA. - ------
Answers----True
True or False: The Phenolphthalein presumptive test is more sensitive
than Luminol. - ------Answers----False
What color does tetramethylbenzidine turn in a positive reaction? - ----
--Answers----Blue
True or False: An ALS (alternate light source) can be used to search for
blood because blood fluoresces. - ------Answers----False
Which test is one of the most common confirmatory tests for blood? - -
-----Answers----Takayama test
Hemoglobin derivatives exhibit a strong absorbance at wave- lengths
between 400 nm and 425 nm. This wavelength is known as what? - ----
--Answers----The Soret band
Which test has the potential to be the most harmful and therefore is not
commonly used? - ------Answers----Benzidene
What part of the spermatozoon contains DNA? - ------Answers----The
head
Which male glad produces PSA? - ------Answers----The prostate
Semen fluoresces due to the presence of what? - ------Answers----
Flavins and Pseudomonas Bacteria
,A vaginal swab that tests positive for acid phosphatase, but shows no
spermatozoa on microscopic examination should be tested further for
the presence of what? - ------Answers----P30
What is the best screening test for saliva? - ------Answers----
Amylase mapping
True or False: The amylase activity in saliva is variable from person to
person often resulting in inconclusive testing for its presence. - ------
Answers----True
What is the active phase of hair growth called? - ------Answers----
Anagen
True or False: In the absence of a hair root, mitochondrial DNA testing
can be carried out on the hair shaft. - ------Answers----True
True or False: Skin cells on the collar of a shirt worn by a perpetrator is
considered to be wear evidence. - ------Answers----True
True or False: Gloves worn to protect latent prints are typically made of
latex. - ------Answers----False
Who developed the most common species determination test? - ------
Answers----Ouchterlony
What is the probe known as that is used for DNA analysis for species
determination? - ------Answers----D17Z1
, The general principle of gel electrophoresis is to separate mole- cules
based on: - ------Answers----Electrical charge
True or False: Ponceau red, Coomassie blue, and Amido black are
protein staining reagents. - ------Answers----True
Who developed the ABO blood typing system? - ------Answers----
Landsteiner
If you inherit type A from your mother and type O from your father, what
is your resulting genotype? - ------Answers----AO
If you are a secretor what antigens would you secrete if you were type
O? - ------Answers----H antigens only
What percentage of the population is considered to be non-secretors? -
------Answers----20%
True or False: Polymorphic enzymes have the same structural forms of
an enzyme with the differing functional properties. - ------Answers---
-False
True or False: PGM can be found in blood, vaginal secretions, and
semen. - ------Answers----True
Which vessel is under the most pressure in the circulatory system? - --
----Answers----Artery
True or False: Capillaries deliver oxygenated blood to the veins. - -----
-Answers----False
2025/2026 EXAM WITH COMPLETE QUESTIONS AND ANSWERS
VERIFIED/ GUARANTEED PASS.
What types of swabs are most common in sexual assault kits? - ------
Answers----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. - ------
Answers----True
For short term storage, liquid blood samples should be kept at what
temperature (room temperature, refrigerated, or frozen)? - ------
Answers----Refrigerated
The cellulose based paper, used for the storage of whole blood, that
prevents DNA degradation and microbial breakdown is known as what?
- ------Answers----FTA paper
Erythrocytes are also known as what component of blood? - ------
Answers----Red blood cells
What is the most abundant protein in serum? - ------Answers----
Albumin
What is the function of red blood cells? - ------Answers----Tissue
oxygenation
What is the function of albumin? - ------Answers----To maintain
appropriate osmotic pressure
,True or False: Mature red blood cells do not contain DNA. - ------
Answers----True
True or False: The Phenolphthalein presumptive test is more sensitive
than Luminol. - ------Answers----False
What color does tetramethylbenzidine turn in a positive reaction? - ----
--Answers----Blue
True or False: An ALS (alternate light source) can be used to search for
blood because blood fluoresces. - ------Answers----False
Which test is one of the most common confirmatory tests for blood? - -
-----Answers----Takayama test
Hemoglobin derivatives exhibit a strong absorbance at wave- lengths
between 400 nm and 425 nm. This wavelength is known as what? - ----
--Answers----The Soret band
Which test has the potential to be the most harmful and therefore is not
commonly used? - ------Answers----Benzidene
What part of the spermatozoon contains DNA? - ------Answers----The
head
Which male glad produces PSA? - ------Answers----The prostate
Semen fluoresces due to the presence of what? - ------Answers----
Flavins and Pseudomonas Bacteria
,A vaginal swab that tests positive for acid phosphatase, but shows no
spermatozoa on microscopic examination should be tested further for
the presence of what? - ------Answers----P30
What is the best screening test for saliva? - ------Answers----
Amylase mapping
True or False: The amylase activity in saliva is variable from person to
person often resulting in inconclusive testing for its presence. - ------
Answers----True
What is the active phase of hair growth called? - ------Answers----
Anagen
True or False: In the absence of a hair root, mitochondrial DNA testing
can be carried out on the hair shaft. - ------Answers----True
True or False: Skin cells on the collar of a shirt worn by a perpetrator is
considered to be wear evidence. - ------Answers----True
True or False: Gloves worn to protect latent prints are typically made of
latex. - ------Answers----False
Who developed the most common species determination test? - ------
Answers----Ouchterlony
What is the probe known as that is used for DNA analysis for species
determination? - ------Answers----D17Z1
, The general principle of gel electrophoresis is to separate mole- cules
based on: - ------Answers----Electrical charge
True or False: Ponceau red, Coomassie blue, and Amido black are
protein staining reagents. - ------Answers----True
Who developed the ABO blood typing system? - ------Answers----
Landsteiner
If you inherit type A from your mother and type O from your father, what
is your resulting genotype? - ------Answers----AO
If you are a secretor what antigens would you secrete if you were type
O? - ------Answers----H antigens only
What percentage of the population is considered to be non-secretors? -
------Answers----20%
True or False: Polymorphic enzymes have the same structural forms of
an enzyme with the differing functional properties. - ------Answers---
-False
True or False: PGM can be found in blood, vaginal secretions, and
semen. - ------Answers----True
Which vessel is under the most pressure in the circulatory system? - --
----Answers----Artery
True or False: Capillaries deliver oxygenated blood to the veins. - -----
-Answers----False
