FIS 201 – Exam 2 Study Guide Part 1 (Mohr, WVU)
Forensic serology can be defined as the examination and analysis of - correct answer ✔✔ bodily
fluids
What type of blood cells are needed for DNA typing? Why? - correct answer ✔✔ White blood
cells, they have a nucleus
what is NOT true about seminal acid phosphate (SAP)
a) it is found in human semen are uniquely high levels
b) SAP can be found in infertile and individuals who've had vasectomies
c) SAP is found exclusively in seminal fluid.
d) SAP activity activity is the best test for presumptive identification of semen - correct answer
✔✔ C) SAP is found exclusively in seminal fluids.
T or F: the specific test for vaginal secretion is expensive and is difficult to perform - correct
answer ✔✔ False
What is an example of a confirmatory test? - correct answer ✔✔ Teichmann Test
a presumptive test for blood can result in a false positive from...... - correct answer ✔✔ plant
materials, materials of animal origin, or chemical oxidants
what are the drawbacks of the starch-iodine tests? - correct answer ✔✔ Common proteins such
as albumin can false positive results.
It does not efficiently or accurately locate stains on evidence.
T or F: Forensic serologists receive and deal only with liquid samples - correct answer ✔✔ false
, T or F: Chemoluminescence occurs when a chemical substance is exposed to a particular
wavelength of light and light energy is emitted at long wavelengths. - correct answer ✔✔ false
What characteristic does an enzyme need to be useful for PCR? - correct answer ✔✔ withstand
extreme heat
Assuming ordinary sexual reproduction, you inherited your mitochondrial DNA from your
_________________. - correct answer ✔✔ mother
What type of testing can unambiguously determine what a male has contributed to a mixed
sample? - correct answer ✔✔ Y-STR typing
what is an allele? - correct answer ✔✔ a form of a gene with a unique number and sequence of
nucleotides
what is a locus? - correct answer ✔✔ a particular location with the genome.
What is a VNTR? - correct answer ✔✔ a sequence that repeats many times. The number of
repeats can be highly erratic
what is a STR? - correct answer ✔✔ a short sequence in a particular location in the genome
which repeats itself
T or F: The important region of mitochondrial DNA for identification is HVIII - correct answer
✔✔ false
If I test a suspected semen stain with Brentamine, what color should it turn? - correct answer
✔✔ blue
Forensic serology can be defined as the examination and analysis of - correct answer ✔✔ bodily
fluids
What type of blood cells are needed for DNA typing? Why? - correct answer ✔✔ White blood
cells, they have a nucleus
what is NOT true about seminal acid phosphate (SAP)
a) it is found in human semen are uniquely high levels
b) SAP can be found in infertile and individuals who've had vasectomies
c) SAP is found exclusively in seminal fluid.
d) SAP activity activity is the best test for presumptive identification of semen - correct answer
✔✔ C) SAP is found exclusively in seminal fluids.
T or F: the specific test for vaginal secretion is expensive and is difficult to perform - correct
answer ✔✔ False
What is an example of a confirmatory test? - correct answer ✔✔ Teichmann Test
a presumptive test for blood can result in a false positive from...... - correct answer ✔✔ plant
materials, materials of animal origin, or chemical oxidants
what are the drawbacks of the starch-iodine tests? - correct answer ✔✔ Common proteins such
as albumin can false positive results.
It does not efficiently or accurately locate stains on evidence.
T or F: Forensic serologists receive and deal only with liquid samples - correct answer ✔✔ false
, T or F: Chemoluminescence occurs when a chemical substance is exposed to a particular
wavelength of light and light energy is emitted at long wavelengths. - correct answer ✔✔ false
What characteristic does an enzyme need to be useful for PCR? - correct answer ✔✔ withstand
extreme heat
Assuming ordinary sexual reproduction, you inherited your mitochondrial DNA from your
_________________. - correct answer ✔✔ mother
What type of testing can unambiguously determine what a male has contributed to a mixed
sample? - correct answer ✔✔ Y-STR typing
what is an allele? - correct answer ✔✔ a form of a gene with a unique number and sequence of
nucleotides
what is a locus? - correct answer ✔✔ a particular location with the genome.
What is a VNTR? - correct answer ✔✔ a sequence that repeats many times. The number of
repeats can be highly erratic
what is a STR? - correct answer ✔✔ a short sequence in a particular location in the genome
which repeats itself
T or F: The important region of mitochondrial DNA for identification is HVIII - correct answer
✔✔ false
If I test a suspected semen stain with Brentamine, what color should it turn? - correct answer
✔✔ blue
