DNA and Gel Electrophoresis

The process of collecting DNA from the nucleus of a cell is called:

• Gel electrophoresis

• DNA fingerprinting

• DNA extraction

• Transformation

Which is the primary purpose of using restriction enzymes in gel electrophoresis?

• It allows the strands of DNA to be cut into various lengths for testing

• It restricts the number of base pairs that can be tested in a sample

• It makes the testing simpler by moving the strands into the gel faster

• It charges the DNA strands

Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?

• DNA is negatively charged so attracted to the positive end of the unit

• DNA is positively charged to attracted to the negative end of the unit

• the agarose gel in negatively charged

• the agarose gel is positively charged

What is the purpose of gel electrophoresis?

• helps cut DNA

• count the genes in DNA

• separates DNA based on size

• allows for an exact replicated organism

What applications can gel electrophoresis be used for?

• Parental Testing

• Criminal Investigations

• Sequence Endangered Species DNA

• All of the above

Which suspect is likely guilty?

• Suspect #1

• Suspect #2

• Suspect #3

Which RE's from above make blunt cuts?

• Alul

• HaeIII

• BamHI

• HindIII

• EcorRI

Which RE's from above make sticky cuts?

• Alul

• HaeIII

• BamHI

• HindIII

• EcorRI

What is the purpose of gel electrophoresis in DNA analysis?

• To separate DNA based on size

• To visualize DNA fragments

• To create a DNA profile

• To compare DNA sequences

How does agarose gel separate DNA fragments?

• By filtering DNA based on size

• By staining DNA fragments

• By visualizing DNA profiles

• By binding to DNA molecules