Multiple Choice
Assume that one counted 67 plaques on a bacterial plate where 0.1 ml of a 10-5 dilution of phage was added to bacterial culture.What is the initial concentration of the undiluted phage?
A) 6.7 × 10-5 pfu/ml
B) 0.1 × 105 pfu/ml
C) 6.7 × 105 pfu/ml
D) 67 pfu/ml
E) 6.7 × 107 pfu/ml pfu = plaque- forming units
Correct Answer:
Verified
Correct Answer:
Verified
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