This is just a reference video shows the basic idea of what
happens during Excersice 12.2
Exercise 12.2 Agarose gel electrophoresis
1)Transfer 18 μL of pPCR850
plasmid to a new sterile microcentrifuge tube.
2)Transfer 2 μL of EcoRI-HF
RE-Mix to the microcentrifuge tube containing pGEM-pcr850.
Mix thoroughly.
3)Transfer 10 uL of pGLO
plasmid to a new sterile microcentrifuge tube.
4)Transfer 10 μL of HindIII-HF
RE-Mix to the microcentrifuge tube containing pGLO. Mix
thoroughly.
5)Incubate both tubes in a
37oC water bath for 30 – 60 min.
6)While the plasmids digest:
a) Use the new spectrophotometers to analyze the genomic
DNA samples
b) Set-up for the electrophoresis chamber.
8) Prepare two negative control by
combine
a) 5 μL of the undigested pPCR850 plasmid with 2 μL loading
dye
b) 5 μL of the undigested pGLO
plasmid with 2 μL loading dye
9) Well #1 – Load 5
μL of the DNA ladder
10) Well #2 – Load 7
μL of undigested pGLO (from step
8b)
11) Well #3 – Load 20
μL of HindIII digested pGLO (from
step 4)
12) Well #4 – Load 7
μL of undigested pPCR850 (from
step 8a)
13) Well #5 – Load 20
μL of EcoRI digested pPCR850 (from
step 2)
Questions:





Which of the following best expresses the question Exercises 12.1 and 12.2 were designed to answer? 12 pt, L2; L.A.1] What is the molecular size of recombinant plasmid pPCR850? ● What are the molecular sizes of the DNA standards?





