WorksheetsDNA Fingerprinting
Total questions: 20
Worksheet time: 22mins
Name
Class
Date
1.
Why is DNA Fingerprinting called a 'fingerprint'?
a)
All of a person's DNA is found in their fingers
b)
A person's DNA Fingerprint looks the same as a person's finger fingerprint
c)
Everyone's finger fingerprint is unique, just as everyone's DNA Fingerprint is unique
d)
The tool used to make a DNA Fingerprint is called 'The DNA Fingerprint Machine'
2.
What is the first step to making a DNA Fingerprint?
a)
Make millions of copies of the DNA
b)
Cut the DNA into different sized pieces
c)
Separate the DNA pieces by size
d)
Compare DNA fingerprints, find a match
3.
What is the second step to making a DNA Fingerprint?
a)
Make millions of copies of the DNA
b)
Cut the DNA into different sized pieces
c)
Separate the DNA pieces by size
d)
Compare DNA fingerprints, find a match
4.
What is the third step to making a DNA Fingerprint?
a)
Make millions of copies of the DNA
b)
Cut the DNA into different sized pieces
c)
Separate the DNA pieces by size
d)
Compare DNA fingerprints, find a match
5.
Three tools are used to make a DNA fingerprint - which one is like scissors that cuts DNA at a particular sequence?
a)
PCR Machine
b)
Restriction Enzyme
c)
DNA Ligase
d)
Gel Electrophoresis machine
6.
Three tools are used to make a DNA fingerprint - which one is like a biological copy machine, making thousands of copies of each piece of DNA?
a)
PCR Machine
b)
Restriction Enzyme
c)
DNA Ligase
d)
Gel Electrophoresis machine
7.
Three tools are used to make a DNA fingerprint - which one separates pieces of DNA by size?
a)
PCR Machine
b)
Restriction Enzyme
c)
DNA Ligase
d)
Gel Electrophoresis machine
8.
Why do DNA pieces move from the top of the Gel towards the bottom?
a)
there is an electric charge in the gel, (+) at the top, which repels the (+) DNA molecules
b)
there is an electric charge in the gel, (-) at the top, which repels the (+) DNA molecules
c)
there is an electric charge in the gel, (-) at the top, which repels the (-) DNA molecules
d)
there is an electric charge in the gel, (+) at the top, which repels the (-) DNA molecules
9.
During the Cut step, why would your DNA be cut into different sized pieces than your neighbor's DNA?
a)
A different restriction enzyme is used
b)
Your DNA has a different sequence than your neighbor's
c)
Restriction enzymes cut randomly, no two Fingerprints are ever the same
d)
DNA samples are heated to different temperatures, causing DNA to break into different sized pieces
10.
When DNA segments are being separated by size,
a)
the small strands stay near the top, the big ones move to the bottom
b)
the big strands stay near the top, the little ones move to the bottom
c)
the small strands move to the middle, and the big ones move to the sides
d)
the big strands move to the middle, and the small ones move to the sides
11.
Which suspect's DNA matches that of the Crime Scene (CS)?
a)
Suspect 1
b)
Suspect 2
c)
Suspect 3
d)
Suspect 4
12.
Gum is found at the scene of a robbery - it may have been left by the thief! A DNA Fingerprint is made of the saliva on the gum, along with the three suspects. None of the suspects' DNA Fingerprints match the gum. Which of the following is TRUE about this case?
a)
DNA Fingerprints sometimes change, so we can not rule out any suspects yet
b)
The DNA Fingerprinting must have been done wrong
c)
Since the DNA Fingerprint did not match any suspect, none of these suspects is the thief
d)
Since the DNA Fingerprint did not match any suspect, none of these suspects left the gum
13.
Based on these results whose blood was found in the blood stain at the crime scene?
a)
Bob
b)
Sue
c)
John
d)
Lisa
14.
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
15.
What main fingerprint pattern is this? (Left Hand)
a)
Loop
b)
Arch
c)
Whorl
d)
Latent
16.
What main fingerprint pattern is this? (Right Hand)
a)
Arch
b)
Plastic
c)
Loop
d)
Whorl
17.
What main type of fingerprint pattern is this?
a)
Loop
b)
Whorl
c)
Arch
d)
Bifurcation
18.
A fingerprint pattern will remain unchanged for the life of an individual; however, the print itself may change due to scars and disease.
a)
True
b)
False
19.
Prints that are not readily visible are called _____ prints.
a)
latent
b)
visbile
c)
plastic
20.
Twins have the same fingerprints.
a)
True
b)
False
100 %
