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3 years ago

12

I NEED THIS ANSWERED FAST!!! Which of the following is an example of direct use?

2 answers:

mash [69]3 years ago

6 0

Do you have the answer choices?

Harlamova29_29 [7]3 years ago

5 0

You didn't add the answers with it?

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3 years ago

Which statement best explains why invertebrates often have outer skeletons but vertebrates do not?

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4 years ago

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A scientist tests a sample in the lab and finds

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3 years ago

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3 years ago

You dilute your bacteriophage for plating 10^-6. You mix 0.1ml of the bacteriophage dilution with 0.3ml of bacteria and plate wi

Blizzard [7]

Answer:

$46 * 10^7$ pfu/ml

Explanation:

Given -

Bacteriophage dilution $= 0.1$ ml

Volume of bacteria and plate with top agar $= 0.3$ ml

Number of plaques $= 46$ pfu

Dilution (d) $= 10^{-6}$

Final concentration of phage stock is equal to

$= \frac{pfu}{d*v}$

Where pfu is the count of plaques

d is the dilution and v is the volume

Substituting the given values, we get -

$\frac{46}{10^{-6} * 10^{-1}} \\= 46 * 10^7$ pfu/ml

7 0

3 years ago