DNA So Far

You load some DNA into a gel with the following Restriction Fragment Length Polymorphism lengths—25bp, 13bp, 54bp, and 11bp. Which of these four would travel the greatest distance from the well during electrophoresis?

• 25bp
• 13bp
• 54bp
• 11bp

What would be the result of gel electrophoresis if restriction enzymes were not used in the process? 

• In theory, there would be only one band produced.
• The DNA would move toward the negative electrode instead of the positive electrode.
• The DNA would  not be amplified.
• Bacteria would be attacked by viruses.

How do scientists cut DNA into smaller strands?

• restriction enzymes
• scissors
• ligase
• agarose

What is the reason for putting the DNA size standard in the gel?

• To run more than one sample.
• To get the DNA sample to move through the gel.
• To get an idea of how long your DNA sample strands are.
• To make your DNA sample look more symmetric in the gel.

Based on these results whose blood was found in the blood stain at the crime scene?

• Bob
• Sue
• John
• Lisa

Biologists need additional copies of a DNA fragment. What tool should they use?

• Gel Electrophoresis
• PCR
• Restriction enzymes
• This isn't possible

Which suspect is likely guilty?

• Suspect #1
• Suspect #2
• Suspect #3

Who invented the process of DNA fingerprinting?

• Jeffreys
• Dawson
• Roseland
• Crick

Which sequence of DNA bases would pair with this partiaal strand
ATG TGA CAG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

Which DNA strands move the fastest through the gel when the electricity is turned on?

• The long strands
• The short strands
• The medium strands
• They all move the same