#1
Which of the following is not a factor affecting the size and shape of a bloodstain?
Speed of the victim
ExplanationSpeed of the victim does not affect bloodstain size or shape.
#2
Which blood type is considered the universal donor?
O
ExplanationBlood type O is considered the universal donor as it lacks A and B antigens.
#3
What does the term 'spatter' refer to in bloodstain pattern analysis?
Bloodstains with a variety of shapes and sizes resulting from the application of force
ExplanationSpatter refers to bloodstains with diverse shapes and sizes due to force.
#4
Which of the following factors does NOT affect the appearance of bloodstains?
Color of the blood
ExplanationThe color of blood does not affect the appearance of bloodstains.
#5
What is the term for bloodstains caused by the force of gravity acting alone?
Passive stains
ExplanationPassive stains result from blood falling due to gravity.
#6
Which of the following is NOT a component of blood that can be analyzed for forensic purposes?
Cholesterol
ExplanationCholesterol is not a component analyzed for forensic purposes in blood.
#7
What type of bloodstain pattern is typically produced when a blood droplet strikes a surface at an angle of approximately 90 degrees?
Passive drop
ExplanationPassive drops occur when blood falls directly onto a surface.
#8
In bloodstain pattern analysis, what does the term 'satellite spatter' refer to?
Secondary drops of blood that are separate from the main bloodstain
ExplanationSatellite spatter refers to additional drops away from the main stain.
#9
Which of the following is NOT a category of bloodstain pattern?
Expiration patterns
ExplanationExpiration patterns are not recognized as a category in bloodstain patterns.
#10
What is the term for the process by which bloodstains are transferred from one surface to another?
Direct transfer
ExplanationDirect transfer refers to blood moving directly from one surface to another.
#11
Which of the following factors can affect the shape of a bloodstain?
All of the above
ExplanationVarious factors like surface texture, angle, and velocity can affect bloodstain shape.
#12
What does luminol react with to produce a luminescent blue glow?
Hemoglobin
ExplanationLuminol reacts with hemoglobin in blood, emitting a blue glow.
#13
Which of the following is NOT a method for enhancing bloodstains at a crime scene?
Hemoglobin analysis
ExplanationHemoglobin analysis is not used for enhancing bloodstains.
#14
In bloodstain pattern analysis, what is the term for a bloodstain resulting from the acceleration of blood out of an injury?
Arterial spurting
ExplanationArterial spurting refers to blood forced out due to artery damage.
#15
Which of the following is a characteristic feature of high-velocity impact spatter?
Fine mist-like droplets
ExplanationHigh-velocity impact spatter exhibits fine mist-like droplets.
#16
Which of the following bloodstain patterns is characteristic of a victim being struck multiple times in rapid succession?
Multiple impact spatter
ExplanationMultiple impact spatter indicates multiple rapid blows to a victim.
#17
In bloodstain pattern analysis, what is the term for a bloodstain resulting from blood dripping into other blood?
Satellite stain
ExplanationSatellite stains result from blood dripping into existing blood.
#18
What is the term for a bloodstain pattern resulting from the movement of an object through a preexisting bloodstain?
Swipe pattern
ExplanationSwipe patterns occur when objects move through existing bloodstains.