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PBS Unit 1.1

Total questions: 32

Worksheet time: 19mins

Name
Class
Date
1.

Which are included in crime scene sketches? (choose all that apply)

a)

time of death

b)

scale

c)

evidence

d)

cause of death

e)

location

2.

What part of the hair is represented by letter B?

a)

cuticle

b)

cortex

c)

medulla

d)

root

3.

Fingerprint ridge details (as shown here) are referred to as

a)

minutiae

b)

ridge details

c)

loops

d)

patterns

4.

What fingerprint ridge pattern is seen here?

a)

whorl

b)

loop

c)

arch

d)

fork

5.

Which part of blood is responsible for carrying oxygen?

a)

red blood cells

b)

white blood cells

c)

platelets

6.

Which part of blood is responsible for fighting infection?

a)

red blood cells

b)

white blood cells

c)

platelets

7.

The Kastle-Meyer test is a _____________ test because it suggest a sample MAY contain blood.

a)

presumptive

b)

confirmatory

8.

What blood type is sample 4?

a)

A

b)

B

c)

AB

d)

O

9.

Which DNA bases pair together?

a)

A-T

b)

G-A

c)

C-T

d)

T-G

10.

What does Y represent on the diagram above?

a)

deoxyribose sugar

b)

phosphate

c)

A-T base pair

d)

C-G base pair

11.

What does the W and X represent on the diagram above?

a)

deoxyribose sugar

b)

phosphate

c)

A-T base pair

d)

C-G base pair

12.

Which letter represents a chromosome?

a)

A

b)

B

c)

C

d)

D

13.

If a restriction enzyme cuts between base pairs GG|CC, how many DNA fragments will result?

a)

1

b)

2

c)

3

d)

4

14.

Which suspect's DNA was found at the crime scene?

a)

1

b)

2

c)

3

d)

4

15.

Which band is created by the LONGEST DNA fragments?

a)

A

b)

B

c)

C

16.

When DNA is run through gel electrophoresis, the DNA moves toward the __________ end of the gel.

a)

positive

b)

negative

c)

neutral

17.
Why is it important to have a detailed procedure?
a)
So scientist make fewer mistakes
b)
So scientists can repeat experiments 
c)
so experiments are reliable and accurate 
d)
All of the above 
18.
What is a procedure?
a)
Step by step instructions
b)
safety rules
c)
What stays the same in the experiment
d)
a prediction 
19.
What type of scientist are tasked with the collection, preservation, and analysis of scientific evidence during the course of an investigation?
a)
police officer
b)
Forensic scientist 
c)
paramedic
d)
toxicologist 
20.
This is a specific test that can be determine the exact identify of the substance. 
a)
Confirmatory test
b)
Positive determine test
c)
Presumptive test
d)
permission test
21.
Describe the fingerprint pattern for Alex Garcia
a)
Plain arch
b)
Whorl
c)
Tented Arch
d)
Radial loop
22.
What answer best describes the purpose of the scientific method?
a)
To solve a problem and create experiments
b)
To research new information
c)
To practice safety
d)
To become a scientist
23.
If if an unknown blood sample clumps with anti-A serum and not with anti-B serum, what is the blood type?
a)
AB
b)
O
c)
A
d)
B
24.
Determine the dependent variable:  Researchers select 10 healthy 40 year old men and have them sit calmly in the same relaxing environment for 2 hours.  Then, the researchers take their blood pressure using a standard blood pressure cuff.  Next, the researchers have the same 10 people do 50 jumping jacks and measure their blood pressure again.  What is the dependent variable?
a)
the exercise -  50 jumping  jacks
b)
resting prior to the experiment
c)
the blood pressure
d)
10 people 
25.
What can be determined from the diameter of a blood drop?
a)
Blood type
b)
Weapon
c)
Amount of blood lost
d)
The height from which the blood fell
26.
Who can donate to a person with AB blood type
a)
Blood donors with A blood type only
b)
Blood donors with B blood type only
c)
Blood donors with AB blood type only
d)
Anyone can donate to a person with AB blood type 
27.

Identify what structure is outlined in the BLACK outline.

a)

Base pair

b)

deoxyribose sugar

c)

phosphate group

d)

hydrogen bonds

e)

Nucleotide

28.

Which of the following is NOT a search method used to sift through a crime scene?

a)

Spiral Method

b)

Wheel/Ray Method

c)

Grid Method

d)

List Method

29.

If a blood spatter diameter was about 16 mm, at what height would it have fallen from? (Use the best fit line to determine)

a)

60 cm

b)

80 cm

c)

100 cm

d)

120 cm

30.

Which of the following are proteins found in chromosomes that assist in the wrapping & condensing of DNA molecules?

a)

Nucleotides

b)

Histones

c)

Hemoglobin

d)

Organelles

31.

______________________ is the lab process that allows DNA analysts to separate and compare DNA samples for forensic purposes.

a)

Gel Electrophoresis

b)

Confirmatory Testing

c)

Kastle-Meyer Test

d)

Polygraph Test

32.

Lie detector tests are sometimes used in forensic investigations to help determine the truthfulness of someone who may be connected to a crime. What is another term for lie detector test?

a)

Monograph Test

b)

Polygraph Test

c)

Polygon Test

d)

Monosaccharide Test

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