WorksheetsPBS - Do Now - 11/5 - Gel Electrophoresis
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
This laboratory procedure is known as
a)
CLONING
b)
gel electrophoresis
c)
chromatography
d)
use of a dichotomous key
2.
In preparation for an electrophoresis procedure, enzymes are added to DNA in order to
a)
convert the DNA into gel
b)
cut the DNA into fragments
c)
change the color of the DNA
d)
produce longer sections of DNA
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 is likely guilty?
a)
Suspect #1
b)
Suspect #2
c)
Suspect #3
5.
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
6.
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
7.
Once DNA has been extracted from the nucleus of a cell, it is exposed to ______ ______ that act like biochemical scissors to cut the DNA.
a)
restriction enzymes
b)
gel agarose
c)
clotting factors
d)
electric shock
8.
Gel electrophoresis enables scientists to
a)
separate DNA fragments.
b)
combine DNA fragments.
c)
count the genes in DNA.
d)
insert DNA in cells.
9.
During gel electrophoresis, DNA moves from the ___ end to the ___ end.
a)
positive, negative
b)
negative, positive
10.
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
100 %
