WorksheetsCHAPTER 9 ELECTROPHORESIS
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
This technique used to analyze DNA involves the
a)
synthesis of new DNA strands from subunits
b)
separation of DNA fragments based on size
c)
production of genetically engineered DNA molecules
d)
removal of defective genes from DNA
2.
What is the purpose of gel electrophoresis?
a)
helps cut DNA
b)
count the genes in DNA
c)
separates DNA based on size
d)
allows for an exact replicated organism
3.
Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?
a)
DNA is negatively charged so attracted to the positive end of the unit
b)
DNA is positively charged to attracted to the negative end of the unit
c)
the agarose gel in negatively charged
d)
the agarose gel is positively charged
4.
In gel electrophoresis, the largest DNA fragment will appear
a)
closest to the starting wells
b)
farthest from the starting wells
c)
three quarters away from the starting wells
d)
it depends on how many fragments there are
5.
Which is the primary purpose of using restriction enzymes in gel electrophoresis?
a)
It allows the strands of DNA to be cut into various lengths for testing
b)
It restricts the number of base pairs that can be tested in a sample
c)
It makes the testing simpler by moving the strands into the gel faster
d)
It charges the DNA strands
6.
Which two bat species are most closely related?
a)
Bat 1 and Bat 2
b)
Bat 1 and Bat 3
c)
Bat 2 and Bat 3
d)
There’s no way to tell
7.
During gel electrophoresis, DNA moves from the ___ end to the ___ end.
a)
positive, negative
b)
negative, positive
8.
Made up of fragments of the same length
a)
Band
b)
Lane
c)
Well
d)
Tank
e)
Marker / DNA Ladder
9.
What applications can gel electrophoresis be used for?
a)
Parental Testing
b)
Criminal Investigations
c)
Sequence Endangered Species DNA
d)
All of the above
10.
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
100 %
