CHE 113 EXAMINATION TEST SCRIPT 2026
COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ Which statement regarding RFLPs is NOT true?
Answer: There is little variation in the number of repeats at a DNA
location (locus) from person to person
◉ Which microscope has the ability to examine larger objects in 3-
dimensions readily?
Answer: Stereoscopic
◉ The microscope of choice for examining firing pin impressions in
bullet cases from one found at a crime scene and a test fired casing
to determine the probability of a particular bullet to have been fired
from a given gun is:
Answer: Comparison Microscope
◉ During gel electrophoresis, the DNA is:
Answer: Separated by fragment size
, ◉ A compound microscope is equipped with two objectives lenses
(4x and 40x) and also has a 10x ocular lens. The highest possible
magnification attainable with this instrument is:
Answer: 400x
◉ Which type of blood cell is involved in transporting hemoglobin to
cells?
Answer: erythrocytes
◉ A person with type AB blood has which type(s) of antibodies in
their blood serum?
Answer: neither anti-A nor anti-B
◉ In the blood spatter droplet, the arrow indicates the:
Answer: Direction of travel of the droplet
◉ A precipitin is used to primarily identify:
Answer: if the blood found is human
◉ Blood falling from a wound only under the influence of gravity is
referred to as a:
Answer: Passive bloodstain
COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ Which statement regarding RFLPs is NOT true?
Answer: There is little variation in the number of repeats at a DNA
location (locus) from person to person
◉ Which microscope has the ability to examine larger objects in 3-
dimensions readily?
Answer: Stereoscopic
◉ The microscope of choice for examining firing pin impressions in
bullet cases from one found at a crime scene and a test fired casing
to determine the probability of a particular bullet to have been fired
from a given gun is:
Answer: Comparison Microscope
◉ During gel electrophoresis, the DNA is:
Answer: Separated by fragment size
, ◉ A compound microscope is equipped with two objectives lenses
(4x and 40x) and also has a 10x ocular lens. The highest possible
magnification attainable with this instrument is:
Answer: 400x
◉ Which type of blood cell is involved in transporting hemoglobin to
cells?
Answer: erythrocytes
◉ A person with type AB blood has which type(s) of antibodies in
their blood serum?
Answer: neither anti-A nor anti-B
◉ In the blood spatter droplet, the arrow indicates the:
Answer: Direction of travel of the droplet
◉ A precipitin is used to primarily identify:
Answer: if the blood found is human
◉ Blood falling from a wound only under the influence of gravity is
referred to as a:
Answer: Passive bloodstain
