12b_POST_lab-problems - markowitz (am45362) 12b POST lab...

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Unformatted text preview: markowitz (am45362) 12b POST lab huq (47985) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 2.0 points A bacterial transformation experiment was conducted and cells were plated on LB agar plates with and without ampicillin. Both plates show similar results: no individual colonies visible, only a white smear or lawn is visible. These results indicate that... 1. a majority of the cells were transformed with plasmid DNA, but the presence of the plasmid must have inhibited colonial growth. 2. transformed cells on both plates were so numerous that colonies grew together and formed a white lawn on each. 3. the culture or plasmid DNA was so dilute that bacteria could not grow as colonies on either plate. 4. none of the cells were transformed or were killed during heat-shock; thus, no dis- crete colonies grew (only a smear or lawn)....
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12b_POST_lab-problems - markowitz (am45362) 12b POST lab...

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