You pipette 1mL from a 30mL starting culture into a 99mL blank labeled A. You plate 1mL and 0.1mL of blank A onto plates B and C, respectively. Plate B has 310 colonies and Plate C has 31 colonies. What is the total cfu of the original culture? Select one: a. 9.3e5 b. 3.1e3 c. 3.1e4 d. 9.3e4 e. 3.1e5

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You pipette 1mL from a 30mL starting culture into a 99mL blank labeled A. You plate 1mL and 0.1mL of blank A
onto plates B and C, respectively. Plate B has 310 colonies and Plate C has 31 colonies. What is the total cfu of
the original culture?
Select one:
a. 9.3e5
b. 3.1e3
c. 3.1e4
d. 9.3e4
e. 3.1e5
Transcribed Image Text:You pipette 1mL from a 30mL starting culture into a 99mL blank labeled A. You plate 1mL and 0.1mL of blank A onto plates B and C, respectively. Plate B has 310 colonies and Plate C has 31 colonies. What is the total cfu of the original culture? Select one: a. 9.3e5 b. 3.1e3 c. 3.1e4 d. 9.3e4 e. 3.1e5
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