(Answered) 1 define natural competency2 what is a serial dilution3

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1. Define natural competency?

2. What is a serial dilution?

3 True or False. You can use plaque assay to determine the number of a lysogenic phage?

4. Can a spectrophotometer be used to measure viable counts of bacteria in culture?

5. Is transmittance or absorbance directly related to the concentration particles present in a solution?

6. Add 1 ml sample to 9 ml diluent → 1:10 (1/10, or 10-1or -1) dilution

Add 1 ml sample to 99ml diluent → 1:100(1/100, or10-2 or -2) dilution

Add 0.1ml to 0.9 ml diluent → ? dilution

(use the 1st two examples as a guide to do the 3rd one)

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