Gel Electrophoresis and PCR Quiz

What is the purpose of Gel Electrophoresis?

• To join DNA strands together

• To separate strands of DNA by size and charge

• To replicate DNA strands

• To sequence DNA

What can Gel Electrophoresis be used to make?

• A pure sample of a specific gene

• A mixture of different genes

• A new DNA strand

• A protein sequence

What must DNA be cut with before Gel Electrophoresis?

• A scalpel

• A restriction enzyme

• A laser

• A chemical solution

What charge does DNA have?

• Positive

• Neutral

• Negative

• No charge

In Gel Electrophoresis, DNA moves towards which end?

• Negative end

• Neutral end

• Positive end

• No specific end

What separates the DNA fragments in Gel Electrophoresis?

• Heat

• Electrical current

• Chemical reaction

• Magnetic field

What is the role of agarose gel in Gel Electrophoresis?

• To dissolve DNA

• To separate fragments by size

• To color DNA

• To replicate DNA

What are the small pits in agarose gel called?

• Holes

• Wells

• Slots

• Chambers

Which fragments move farther in Gel Electrophoresis?

• Larger fragments

• Smaller fragments

• Heavier fragments

• Denser fragments

What does the buffer do in Gel Electrophoresis?

• Colors the DNA

• Covers the gel and conducts electricity

• Replicates the DNA

• Destroys the DNA