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WorksheetsDNA - Forensic Science
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
True or False. The total amount of DNA in a cell is known as genome?
a)
True
b)
False
2.
Which model of base pairing is correct?
a)
A=T and C=G
b)
A=T=C=G
c)
A+T and G+C
d)
A=G and T=C
3.
If base-pairing rules state that Adenine always pairs with Thymine, and Cytosine pairs with Guanine, what would be the complementary strand to ACGGT?
a)
ACGGT
b)
TGGCA
c)
TGCCA
d)
ACCGT
4.
The purpose of PCR
a)
cutting DNA
b)
creating RFLPs
c)
amplifying/copy DNA
d)
reversing the charge of DNA
5.
Who invented the process of DNA fingerprinting?
a)
Jeffreys
b)
Dawson
c)
Roseland
d)
Crick
6.
What enzyme is used during PCR to pair complementary bases to the template strand?
a)
Thermonuclease
b)
Helicase
c)
DNA Polymerase
d)
RNA Polymerase
7.
How do scientists cut DNA into smaller strands?
a)
restriction enzymes
b)
scissors
c)
ligase
d)
agarose
8.
Why do you use a new pipette tip on the micropipette every time you get a new sample?
a)
To avoid contaminating the other samples
b)
To use as many tools as you can.
c)
The pipette tips disappear after being used.
d)
None of these reasons
9.
Which sequence of DNA bases would pair with this partiaal strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
10.
Which two bear species are most closely related?
a)
Bear 1 and Bear 2
b)
Bear 1 and Bear 3
c)
Bear 2 and Bear 3
d)
There’s no way to tell
11.
Based on these results whose blood was found in the blood stain at the crime scene?
a)
Bob
b)
Sue
c)
John
d)
Lisa
12.
Encoded DNA, with directions to build molecules
a)
Introns
b)
Exons
13.
Watson and Crick were the first to suggest that DNA is _____
a)
a short molecule
b)
the shape of a double helix
c)
a protein molecule
d)
the genetic material
14.
The computerized database used to store DNA information is:
a)
AFIS
b)
NIBIN
c)
CODIS
d)
PDQ
15.
Biologists need additional copies of a DNA fragment. What tool should they use?
a)
Gel Electrophoresis
b)
PCR
c)
Restriction enzymes
d)
This isn't possible
16.
Where is DNA found in the body?
a)
Cells nucleus
b)
Heart
c)
Cartilage
d)
Muscle
17.
Which of the following is a molecule labeled with a radioactive isotope, dye, or enzyme that is used to locate a particular sequence or gene on a DNA molecule?
a)
Restriction Enzyme
b)
DNA Fingerprint
c)
DNA probe
d)
Genome
18.
Intons make up what percent of human genome?
a)
75%
b)
98.5%
c)
25%
d)
1.5%
19.
During PCR, the temperature is increased separate DNA strands, what is this step called?
a)
Extension
b)
Contamination
c)
Annealing
d)
Denaturation
20.
A special protein that targets a specific base sequence and cuts DNA into smaller fragments is what?
a)
Genome
b)
Polymerase Chain Reaction
c)
Restriction Enzyme
d)
DNA Fingerprint
21.
What is a special protein that targets a specific base sequence and cuts DNA into smaller fragments?
a)
Electrophoresis
b)
Polymerase Chain Reaction
c)
Restriction Enzyme
d)
Introns
22.
Pattern of DNA fragments obtained by examining a person's unique sequence of DNA base pairs is?
a)
PCR
b)
Chromosome
c)
Electrophoresis
d)
DNA Fingerprinting
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