WorksheetsDNA Profiling/Fingerprinting Assessment
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
1. What is the name of the national database that houses DNA profiles?
a)
CODIS
b)
AFIS
c)
NIBIN
d)
DFDA
2.
2. Which of the following is a piece of evidence that does NOT contain nuclear DNA?
a)
hair with the follicle
b)
saliva
c)
hair without the follicle
d)
blood
3.
3. Based on the DNA profile below, which suspect matches the crime scene DNA?
a)
suspect 1
b)
suspect 2
c)
suspect 3
d)
none of the above
4.
4. The following DNA profile is part of a paternity test that is seeking to confirm which male is the father of the baby represented in the profile. Who is most likely the father of this baby?
a)
male 1
b)
male 2
c)
both males are the father
d)
neither male is a match
5.
5. Which of the following is the process of creating DNA fingerprints from crime scene and suspect DNA samples?
a)
CODIS
b)
DNA tracking
c)
DNA profiling
d)
criminalistics
6.
6. Investigators at the Dade County Sheriff’s Department were called to a homicide, where they found a blood stain that does not belong to the victim in the crime. They have received leads that have led to four suspects. The following DNA profile compares the evidence found at the scene with the four suspects. Which suspect is most likely the donor of the crime scene blood stain?
a)
Harry
b)
Olivia
c)
Luis
d)
Omar
7.
7. Which of the following statements about DNA is incorrect?
a)
DNA is made up of nucleotides containing a sugar, phosphate, and nitrogenous base.
b)
Mitochondrial DNA can be helpful in determining relationships.
c)
Nuclear DNA can be extracted from any substance originating from a living organism.
d)
DNA evidence can be used to link a suspect to a crime scene
8.
8. Before electrophoresis can be conducted on a sample of DNA, which of the following must take place first?
a)
The DNA must be treated with acid.
b)
The DNA profile must be printed so that it can be analyzed.
c)
The DNA must be treated with benzene so that it can be separated.
d)
The DNA must be extracted from the source and the DNA segments must be cut.
9.
9. Which of the following is true regarding DNA collection?
a)
DNA can only be collected from blood evidence.
b)
DNA is permanent and cannot degrade.
c)
DNA can be extracted from substances as small as a nanogram.
d)
DNA profiling is only conducted in rape and murder cases
10.
10. What is the primary purpose of DNA profiling in forensic science?
a)
to create a physical description of a suspect
b)
to determine the age of a victim
c)
to compare biological evidence to known samples/suspects
d)
to identify the cause of death
11.
11. What is the role of restriction enzymes in DNA analysis?
a)
to copy DNA
b)
to cut DNA at specific sequences
c)
to join DNA strands together
d)
to analyze STRs
12.
12. What is the primary advantage of mitochondrial DNA analysis in forensics?
a)
It provides a full genetic profile of an individual.
b)
It degrades more easily than nuclear DNA.
c)
It is inherited only from the mother and can be used when nuclear DNA is unavailable.
d)
It is more unique than nuclear DNA.
13.
13. What is the first step in forensic DNA analysis?
a)
interpreting the DNA profile
b)
extracting and amplifying the DNA
c)
using gel electrophoresis to create a profile
d)
comparing DNA to CODIS
14.
14. Who was the scientist responsible for creating DNA profiles that was later used as a means of identification in criminal cases?
a)
Colin Pitchfork
b)
Alec Jeffreys
c)
Tommy Lee Andrews
d)
Edmond Locard
15.
15. True or False: Mitochondrial DNA is inherited from both parents.
a)
True
b)
False
16.
16. True or False: The polymerase chain reaction (PCR) is used to amplify small amounts of DNA.
a)
True
b)
False
17.
17. True or False: The complementary base strand to the DNA sequence ATGGCTA is TACCGAT.
a)
True
b)
False
18.
18. True or False: Except for identical twins, no two people have the same DNA
a)
True
b)
False
19.
19. True or False: DNA is considered class evidence because it can only be narrowed to a group of people.
a)
True
b)
False
20.
20. Which of the following is NOT a component of a nucleotide?
a)
sugar
b)
phosphate
c)
amino acid
d)
nitrogenous base
100 %
