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

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 applications can gel electrophoresis be used for?

• Parental Testing
• Criminal Investigations
• Sequence Endangered Species DNA
• 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

In gel electrophoresis, the largest DNA fragment will appear

• closest to the starting wells
• farthest from the starting wells
• three quarters away from the starting wells
• it depends on how many fragments there are

Tags

NGSS.MS-PS2-5

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 bat species are most closely related?

•  Bat 1 and Bat 2
• Bat 1 and Bat 3
• Bat 2 and Bat 3
• There’s no way to tell

Tags

NGSS.HS-LS4-1

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

Shannon does not know who her father is.  There are three possibilities:  Jack, Daniel and Bill.  Who is the father?

• Jack
• Daniel
• Bill

Tags

NGSS.HS-LS3-1