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Gel Electrophoresis
Test Description: Contains questions for gel electrophoresis and protein synthesis
Instructions: Answer all questions to get your test result.
1) In gel electrophoresis, how do we make the DNA migrate through the gel?
A
Large fragments drift to the end of the gel
B
Gravity
C
We place a positive electrode away from the wells
D
We place a negative electrode away from the wells
2) In gel electrophoresis, what does the gel act like?
A
An open window
B
A filter
C
A barrier
D
A gate
3) What do we use to cut the DNA before gel electrophoresis?
A
Helicase
B
Lipase
C
DNA polymerase
D
Restriction enzymes
4) Which is NOT a reason for using gel electrophoresis?
A
Comparing two sets of DNA
B
Organizing DNA fragments from largest to smallest
C
Organizing DNA by the shape of the backbone
D
Organizing DNA in an order that we can see
5) If we have a baby, and we know who the mother is but we want to determine the father using gel electrophoresis, how will we know we have found the father?
A
The father will not match any DNA bands
B
The father will match the baby at any DNA band where the baby matches the mother
C
The father will match the baby at any band where the baby does not match the mother
D
The father will match all of the DNA bands of the baby
6) Which is a true statement about a tRNA molecule?
A
It acts as a readable copy of the DNA molecule
B
It is complementary to the DNA template strand
C
It carries an amino acid to be attached to the protein chain
D
It forms long strands of nucleotides
7) Which is a false statement about an mRNA molecule?
A
It contains the nitrogenous base uracil
B
It is complementary to the DNA template strand
C
It contains the nitrogenous base adenine
D
It contains anticodons
8) Where does transcription take place?
A
Nuclear Membrane
B
Cytoplasm
C
Ribosomes
D
Nucleus
9) Where does translation take place?
A
Ribosome
B
Nuclear Membrane
C
Cytoplasm
D
Nucleus
10) What is the main purpose of the ribosome in translation?
A
It holds the mRNA in place
B
It creates a tRNA strand
C
It adds nucleotides to the mRNA strand
D
It adds amino acids to the mRNA strand
*select an answer for all questions
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