Lab 11 experiment 1
Flame and cap the tube.
Experiment 1 observation of mitosis in a plant cell lab activity
Streak unknown bacterium 2 on sector 2 of the first Trypticase Soy agar plate. The second part of the lab will demonstrate viral specificity. Expression of the bacteriophage genes controlling bacteriophage replication is repressed by a repressor protein and the bacteriophage DNA replicates as a part of the bacterial nucleoid. However, the bacteriophage does not shut down the host bacterium. At this stage, the virus is called a prophage. Using the same pipette and procedure, aseptically withdraw 1. Phage typing is useful in identifying strains of such bacteria as Staphylococcus aureus, Pseudomonas aeruginosa and Salmonella species. Using the same pipette and procedure, aseptically remove 0. A plaque is a small, clear area on an agar plate where the host bacteria have been lysed as a result of the lytic life cycle of the infecting bacteriophages.
Insert the cotton-tipped end of the pipette into a blue 2 ml pipette filler. However, in approximately one in every million to one in every billion bacteria containing a prophage, spontaneous induction occurs Fig.
At this stage, the virus is called a prophage. This helps them compete with students in better equipped schools and bridges the digital divide and geographical distances. Draw a circle about the size of a dime in the center of each of the 4 sectors see Fig.
Using a sterile From the tip of the pipette to the "0" line is 1 ml; each numbered division 0.
Number the 4 sectors 1, 2, 3, and 4, to correspond to the 4 unknown bacteria.
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