Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Forensics: DNA Review

Total questions: 44

Worksheet time: 44mins

Name
Class
Date
1.
Which shows the correct complementary base pairing for DNA?
a)
C-A, T-G
b)
A-G, C-T
c)
C-G, U-A
d)
T-A, G-C
2.
If one side of a DNA strand is A-A-T-C-G-G-A, what would the other side be?
a)
A-A-T-C-G-G-A
b)
G-G-C-A-T-T-AG
c)
T-T-A-G-C-C-T 
d)
C-C-G-A-T-T-C
3.
Based on these results whose blood was found in the blood stain at the crime scene?
a)
Bob
b)
Sue
c)
John
d)
Lisa
4.
Which suspect’s DNA matches the felon’s DNA left at the crime scene?
a)
Suspect 1
b)
Suspect 2
c)
Suspect 3
5.
Mr. Jones was killed in a car accident.  Afterwards, a former girlfriend filed a paternity suit claiming that Mr. Jones was the father of her child, and thus she was entitled to the man’s estate.  Which sample of DNA would have to be from Mr. Jones if he were the child’s father? 
a)
2
b)
3
c)
4
d)
5
6.
DNA is found in what two organelles  
a)
Nucleus and Ribosomes
b)
Ribosomes and Mitochondria 
c)
Nucleolus and Golgi Body
d)
Nucleus and Mitochondria
7.
Mitochondrial DNA is different from nuclear DNA because
a)
it is inherited only from the mother
b)
It is inherited only from the father
c)
It is double helix in shape
d)
It is not useful in forensic science
8.
The male determines the sex of the child
a)
True
b)
False
c)
sometimes
9.
This type of DNA testing examines the number of repeats that occur at a particular locus
a)
karyotype
b)
PCR
c)
RLFP
d)
STR
10.

This technique is used to copy target segments of DNA

a)

Gel electrophoresis

b)

PCR

c)

RLFP

d)

STR

11.
This technique is used to separate DNA or protein fragments based on their length
a)
Gel electrophoresis
b)
PCR
c)
RLFP
d)
STR
12.
DNA has what charge?
a)
positive
b)
negative
c)
neutral
13.
What cuts the DNA in RFLP testing?
a)
probes
b)
restriction enzymes
c)
DNA polymerase
d)
heat
14.
The purpose of PCR
a)
cutting DNA
b)
creating RFLPs
c)
amplifying/copy DNA
d)
reversing the charge of DNA
15.
Which DNA fragment bands move faster and farther in a gel electrophoresis? 
a)
there is no way to tell 
b)
the largest ones
c)
the smallest ones
d)
none of these
16.
DNA fingerprinting works because
a)
Most genes are dominant
b)
All organisms contain RNA
c)
The most important genes are different among most people
d)
No two people, except identical twins, have exactly the same DNA 
17.
Which process requires the most DNA?
a)
RFLP
b)
STR
c)
PCR
d)
Recombinant DNA
18.
One or two alternative forms of a gene is called:
a)
RNA
b)
Restrictin Enzyme
c)
karyotype
d)
allele
19.

To calculate the percentage of people who have a particular allele, population studies must be conducted to collect data.

a)

True

b)

False

20.

Population genetics is the study of the variation in genes among a group of individuals

a)

True

b)

False

21.

In gel electrophoresis, what causes the DNA fragments to separate?

a)

DNA is negatively charged and moves towards the positive end

b)

DNA is negatively charged and moves towards the negative end

c)

DNA is positively charged and moves towards the positive end

d)

DNA is positively charged and moves towards the negative end

22.

How many alleles of an STR locus will an individual DNA sample contain?

a)

1

b)

2

c)

20

d)

It varies by person

23.

Which STR locus shows a heterozygous genotype?

a)

D13S631

b)

D13S305

c)

D13S634

d)

Both D13S634 and D13S305

24.

Which STR locus shows a homozygous genotype?

a)

D13S631

b)

D13S305

c)

D13S634

d)

Both D13S634 and D13S631

25.

What needs to be done first to find the STR loci?

a)

insert restriction enzymes to cut the sample

b)

run the full sample on a gel to separate it by electrophoresis, then take the appropriate samples for STR analysis

c)

insert primers and run PCR to copy the loci needed

d)

utilize RFLP

26.

In Forensic Analysis, which region of the DNA is used of a sample?

a)

Coding

b)

Non-Coding

c)

Both

d)

Exons

27.

What does the AMEL locus help identify?

a)

Gender

b)

Height

c)

Full DNA profile

d)

it is one of the 13 core STR loci

28.

What do the peaks represent on the electropherogram?

a)

VNTR lengths

b)

number of repeats at an STR locus

c)

gel electrophoresis results

d)

RFLP repeats

29.

Why is the use of familial DNA controversial when it is useful for solving cases?

a)

Innocent peoples are being investigated

b)

Possible violation of the 4th amendment

c)

People provide evidence regardless of guilt

d)

All of these can be correct

30.

How are mtDNA and YSTR similar?

a)

They both link paternal bloodlines

b)

They both link maternal bloodlines

c)

They are both individual evidence

d)

They both are class evidence

31.

DNA sequences with a high degree of polymorphism are

a)

least helpful for DNA analysis

b)

most helpful for DNA analysis

c)

not useful at all

d)

none of these are correct

32.
What are the nucleotides made of?
a)
Sugar, Phosphate, nitrogen base
b)
Phosphate, Adenine, nitrogen base
c)
Thymine, Adenine, Cytomine
d)
Phosphate, Nitrogen, Adenine
33.

In the nucleus of most human body cells, there are ___ pairs of chromosomes

a)

23

b)

46

c)

92

d)

10

34.

What information is necessary to know the length of an STR locus?

a)

It has to be graphed to find out

b)

The size of the flanking sequence and the number of repeats

c)

The size of the flanking sequence, the size of the repeating sequence and the number of repeats

d)

The size of the repeating sequence and the number of repeats

35.

Why would allele frequency be brought up in the court of law?

a)

It provides information about the liklihood of two individuals sharing a particular combination of genotypes in a population

b)

it proves information of suspect guilt

c)

it provides information linking a suspect to a crime scene

d)

it provides information regarding the number of suspects in a case

36.

Why was the Kirk Bloodsworth case of special importance?

a)

he was the first death row inmate exonerated due to DNA evidence

b)

he was the first individual convicted due to DNA evidence

c)

he won the Nobel Prize for the discovery of RFLP and DNA

d)

he was the first individual released due to DNA evidence

37.

What is a flanking sequence for an STR locus used for in the lab?

a)

restriction enzymes

b)

PCR primers

c)

RFLP

d)

gel electrophoresis

38.

Which of the following cases utilized familial DNA?

a)

Steven Avery

b)

Grim Sleeper

c)

Kirk Bloodsworth

d)

OJ Simpson

39.

About how many repeats of D13S631 STR loci are there?

a)

440

b)

196

c)

475

d)

Not enough information to tell

40.

DNA of every organism on Earth is made of the same four nitrogen bases.

a)

True

b)

False

41.

DNA contains the instructions for constructing RNA. RNA contains the instructions for constructing proteins. Proteins then are assembled and fold/shape into specific tissues to eventually build an individual. This is the central dogma of Biology and the reason why DNA is specific to each and every individual.

a)

True

b)

False

42.

DNA replication results in two DNA molecules,

a)

each with two new strands.

b)

one with two new strands and the other with two original strands.

c)

each with one new strand and one original strand.

d)

each with two original strands.

43.

What type of sugar is in DNA?

a)

glucose

b)

lactose

c)

deoxyribose

d)

ribose

44.

The disc shaped protein core that DNA wraps around is called

a)

histone

b)

nucleosome

c)

chromatin

d)

gene

Similar Resources on Wayground

Epidemiology Test

40 questions

Epidemiology Test

quiz

Worksheet

•

University

Photosynthesis in the Ocean

40 questions

Photosynthesis in the Ocean

quiz

Worksheet

•

10th - 12th Grade

Populations Species Interactions Review

45 questions

Populations Species Interactions Review

quiz

Worksheet

•

11th Grade

Satellite Technology

49 questions

Satellite Technology

quiz

Worksheet

•

University

Psychophysiological Methods in Neuroscience (Text & Quiz)

48 questions

Psychophysiological Methods in Neuroscience (Text & Quiz)

quiz

Worksheet

•

12th Grade

sains t1 perubahan keadaan jirim

41 questions

sains t1 perubahan keadaan jirim

quiz

Worksheet

•

1st - 12th Grade

Water Pollution ES TEST pops

49 questions

Water Pollution ES TEST pops

quiz

Worksheet

•

11th Grade

Solar System Debris

40 questions

Solar System Debris

quiz

Worksheet

•

10th - 12th Grade