Gel Electrophoresis

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

• Determine how closely related organisms are

• All of the above

Which DNA fragment bands move faster and farther in a gel electrophoresis? 

• there is no way to tell 
• the largest ones
• the smallest ones
• none of these

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

• 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

Which two bear species are most closely related?

• bear 1 and bear 2

• bear 1 and bear 3

• bear 2 and bear 3

• There’s no way to tell

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

• Bob
• Sue
• John
• Lisa

Which suspect is linked to the crime scene by this DNA analysis

• Suspect A
• Suspect C
• Suspect D
• Suspect B

Tags

NGSS.HS-LS3-2