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#Obtain three PCR tubes and lids from your instructor in your team color.
#Label the '''side''' of each PCR tube A, B and C - the marker WILL rub off the top. Tube C will serve as your negative control with no colony added.
#Add 30 ul of master mix to each tube. Your master mix will include: 23 μL H<sub>2</sub>O; 3 μL of PCR buffer (10 mM Tris, 50 mM KCl, 1.5 mM MgCl2 pH 8.3); 0.67 μL of 10 mM dNTPs; 0.67 μL of forward
primer (20 μM stock); 0.67 μL of reverse primer (20 μM stock); 1 μL of 2 units/μL Taq polymerase. The primers we are using are for T7 polymerase. Why? <BR>T7 primer sequence:<BR>
Forward 5’GAAATTAATACGACTCACTATAGG <BR>
#After each tube has master mix, use the sterile end of an autoclaved toothpick (''not'' the end you are touching) or the end of a sterile micropipet tip and gently touch the center of your colony of interest and pick up a tiny, barely visible amount of the bacteria. DO '''NOT TAKE THE ENTIRE COLONY!!!''' Make sure that you select colonies that are large enough to have a significant amount remaining bacteria after taking your sample.