Deck 16: Serology

Question 1

Serology is defined as the examination of body parts.

Answer 1

False

Question 2

DNA is rarely used to identify suspects or innocent victims.

Answer 2

False

Question 3

A white blood cell is known as a leukocyte.

Answer 3

True

Question 4

A red blood cell is known as a thrombocyte.

Question 5

Luminol undergoes oxidation in the presence of the heme in blood.

Question 6

Like luminol, fluorescein undergoes chemiluminescence.

Question 7

The Teichmann and Takayama tests for the presence of blood are presumptive tests.

Question 8

The Teichmann and Takayama tests for the presence of blood are microcrystal tests.

Question 9

The origin of blood according to species is generally confirmed by an immunoprecipitation test.

Question 10

The type of bloodstain that results repeated blows on victim is known as impact spatter due to blunt force.

Question 11

Cast off bloodstains occur on surrounding surfaces from the repeated use of a bloody instrument.

Question 12

Electrophoresis is rarely used to separate enzymes in blood.

Question 13

PSA is secreted by the testicles into semen.

Question 14

The most familiar of human blood groups is the

A) ABC group
B) ABO group
C) BCO group
D) LM group

Question 15

The process where antibodies and antigens of the same type come together is known as

A) polymorphism
B) congealing
C) agglutination
D) clotting

Question 16

Which of the following is not considered a biological fluid?

A) seminal fluid
B) vaginal secretions
C) saliva
D) all are biological fluids

Question 17

Semen that has no sperm is termed

A) anemic
B) oligospermic
C) antispermative
D) none of these

Question 18

The reagent used to denote the presence of seminal fluid is:

A) Brentamine Slow Blue A
B) Brentamine Fast Blue A
C) Brentamine Slow Blue B
D) Brentamine Fast Blue B

Question 19

The reagent used to visualize sperm is called

A) Alpha-amylase Reagent
B) Schiff Reagent
C) Nuclear Fast Red
D) Starch Iodide

Question 20

The solid part of the blood consists of

A) erythrocytes, leukocytes and thrombocytes
B) red blood cells and white blood cells
C) erythrocytes, leukocytes and plasmocytes
D) red blood cells, white blood cells, and antibodies

Question 21

A number of angled bloodstains at a crime scene in a specific area may allow the investigator to determine

A) motive
B) area of convergence
C) type of weapon
D) number of blows

Question 22

The angle of impact of blood spatter is determined by

A) measuring the length and width of a bloodstain, then using the inverse sine ratio of the length to the width to determine the angle of impact.
B) measuring the length and width of a bloodstain, then using the sine ratio of the length to the width to determine the angle of impact.
C) measuring the length and width of a bloodstain, then using the inverse sine ratio of the width to the length to determine the angle of impact.
D) measuring the length and width of a bloodstain, then using the sine ratio of the width to the length to determine the angle of impact.

Question 23

The type of bloodstain pattern that arises from a cut artery gushing blood is known as

A) vertical blood drops
B) flow
C) arterial spurt
D) large volume

Question 24

The type of bloodstain pattern that arises when an object moves through an existing bloodstain

A) expirated
B) void
C) swipe
D) wipe

Question 25

A bloodstain deposit comes from sneezing or coughing is called

A) expirated
B) void
C) swipe
D) wipe

Question 26

Plasma constitutes about______% of the volume of blood.

A) 25
B) 35
C) 45
D) 55

Question 27

Small blood droplets that leave a parent bloodstain upon impact to a surface surrounding the stain are called

A) spines
B) satellites
C) splatter
D) spatter

Question 28

The protrusions around a circular bloodstain that appear after a blood drop hits the surface

A) spines
B) satellites
C) splatter
D) spatter

Question 29

The presumptive (field) test that determines if a bloodstain is human in origin is called

A) Kastle Meyer Test
B) Hexagon OBTI Test
C) Ouchterlony Test
D) TeichmannTest