Module 4

Question 1

The most frequently encountered biological stains found at a crime scene are blood, seminal fluid, and saliva.

Answer 1

True

Question 2

Urine tests may provide a timeline that indicates drug use over a long period of time.

Answer 2

False

Question 3

The most common confirmatory test is the gas chromatography/ mass spectrometry (GC/MS) test.

Answer 3

True

Question 4

Identical twins have the same genetic makeup

Answer 4

True

Question 5

CODIS, Combined DNA Index System, contains DNA profiles of all individuals incarcerated since 1998.

Answer 5

False

Question 6

Serology is the analysis of the properties and effects of

a) blood, urine, tissues, organs, and sweat

b) semen, blood saliva, sweat, and saliva

c) DNA, blood, urine, sweat, and saliva

d) None of the above

Answer 6

b) semen, blood saliva, sweat, and saliva

Question 7

At the crime scene, the most frequently encountered biological stains are

a) urine, blood, and sweat

b) blood, saliva and sweat

c) blood, seminal fluid and saliva

d) None of the above

Answer 7

c) blood, seminal fluid and saliva

Question 8

Toxicology is the study of

a) DNA and blood to determine the presence of drugs or poisons

b) body fluids to determine the presence of drugs or poisons

c) organs and tissues to determine the presence of drugs or poisons

d) body fluids, tissues and organs to determine the presence of drugs or poisons

Answer 8

d) body fluids, tissues and organs to determine the presence of drugs or poisons

Question 9

A confirmatory test for the presence of drugs or poisons is done

a) at the crime lab using a GC/MS

b) at the crime scene by the CSI

c) at the crime lab using alternative light sources

d) at the crime scene by a forensic scientist

Answer 9

a) at the crime lab using a GC/MS

Question 10

Physical evidence that can provide a timeline indicating drug use over a long period is

a) urine

b) hair

c) blood

d) perspiration

Answer 10

b) hair

Question 11

Who discovered the first deoxyribonucleic acid (DNA) “fingerprints?”

a) Sir Daniel Moeser

b) Sir Alex Baldwin

c) Sir Alec Jeffreys

d) Sir Alan Jefferson

Answer 11

c) Sir Alec Jeffreys

Question 12

The Combined DNA Index System (CODIS) was established by

a) AFT

b) ICE

c) FBI

d) INS

Answer 12

c) FBI

Question 13

A(n) _____________ test is conducted at the crime scene to indicate the possibility of blood.

a) presumptive

b) initial

c) first

d) blood

Answer 13

a) presumptive