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DNA Electrophoresis – Questions & Solutions (Solved)
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DNA Electrophoresis – Questions & Solutions (Solved)
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DNA Electrophoresis – Questions & Solutions (Solved)What is the only way you would not have a completely unique set of DNA?
Right Ans - If you had an identical twin
What does gel electrophoresis do? Right Ans - Seperates DNA molecules on
the basis of size
What cuts the DNA into fragments? Right Ans - Restriction enzymes
How many regions does DNA fingerprinting usually compare? Right Ans - 5
regions
Is DNA fingerprinting considered reliable for identification purposes? Right
Ans - Yes, becuase the more regions of DNA are studied the less likely there is
to be a person with the same DNA fingerprint
What is the electrical current used for? Right Ans - Used to move the DNA
fragments across the gel
The charge of the backbone in a DNA strand is...? Right Ans - Negative
What end does the DNA start on? Right Ans - Negative end
The smaller the fragments the... Right Ans - Farther it moves away from the
negative charge
The gel is a... Right Ans - Polysaccharide matrix that "catches" the
molecules
What is gel stained with so that you can see the DNA molecules that resolved
into bands? Right Ans - Ethidium bromide
Gel electrophoresis is a technique used for Right Ans - Seperating
molecules by base pair
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