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WorksheetsForensic Science Sem Rev Sp 1516 Blood Spatter
Total questions: 20
Worksheet time: 13mins
Name
Class
Date
1.
What is the function of red blood cells?
a)
carry oxygen
b)
fight infection
c)
aid in clotting
d)
carry hormones
2.
What is the function of platelets?
a)
carry oxygen
b)
fight infection
c)
aid in clotting
d)
carry hormones
3.
What determines blood type?
a)
Proteins on red blood cells
b)
Proteins on white blood cells
c)
Proteins in the plasma
d)
Proteins on platelets
4.
If a blood cell is A-, what type of proteins are present?
a)
Only A proteins
b)
Only Rh proteins
c)
Both A and Rh proteins
d)
Neither A nor Rh proteins
5.
What proteins are present in type O- blood cells?
a)
Only A proteins
b)
Only B proteins
c)
Only Rh factor proteins
d)
None of these proteins
6.
What part of blood is responsible for fighting infections?
a)
Red Blood Cells
b)
White Blood Cells
c)
Platelets
d)
Plasma
7.
What type of blood can receive any type of blood?
a)
A
b)
B
c)
AB
d)
0
8.
What blood type is the "universal donor" because it can be donated to anyone?
a)
A
b)
B
c)
AB
d)
O
9.
Tonia looked closely at her blood typing plate and sees no agglutination in any of the wells. Her blood type is O-.
a)
True
b)
False
10.
The intersection of straight lines through the long axis of several individual bloodstains in an impact spatter pattern illustrates the ___________ of the pattern:
a)
void pattern
b)
velocity classification
c)
area of origin
d)
area of convergence
11.
1. The probability of a blood type equals the __________ of the probabilities for each protein group.
a)
total
b)
product
c)
difference
d)
dividend
12.
1. If 42 percent of humans have Type A proteins on their red blood cells and 85 percent of people have an RH factor present on their red blood cells, what is the probability for an individual to have type A+ blood?
a)
35.7%
b)
46%
c)
61%
d)
73.2%
13.
1. White blood cells secrete proteins
a)
known as antibodies, which assist in the immune response
b)
known as viruses, which assist in the immune response
c)
known as bacteria, which assist in the immune response
d)
known as parasites, which assist in the immune response
14.
1. Agglutination is…
a)
the droplet from which satellite spatter originated
b)
the point in space where the blood spatter came from
c)
any foreign substance or cell in the body that reacts with antibodies
d)
the clumping of molecules or cells caused by an antigen-antibody reaction
15.
A gunshot wound close to the head would produce:
a)
low velocity spatter
b)
high velocity spatter
c)
medium velocity spatter
d)
none of these
16.
If type A blood is found in approximately 42% of the population and PGM 2-1 enzyme is found in approximately 36% of the population, what percentage of the population will have type A, PGM 2-1?
a)
1.5%
b)
15%
c)
36%
d)
42%
17.
Blood typing is considered
a)
a class characteristic
b)
an individual characteristic
c)
both of these
d)
neither of these
18.
Which letter best shows the convergence point (origin point)?
a)
A
b)
B
c)
C
d)
D
19.
The shape of blood drops is cause by a natural_______________ of blood.
a)
cohesiveness
b)
satellite drops
c)
adhesiveness
d)
lines of convergence
20.
What is the blood type depicted in the test?
a)
A-
b)
B+
c)
AB-
d)
AB+
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