Serial Dilution

True/False: Serial dilutions must transfer the same amount of volume to each well.

• True

• False

If there is 19 ml of diluent in the tube and a 1 ml sample is added, what is the dilution of the sample?

• 1/30

• 1/19

• 1/20

• 1/18

How are serial dilutions expressed?

• Decimals

• Percentages

• Integers

• Fractions

If there is a 9.9 ml diluent in the tube, and a 0.1 ml sample is added into the tube, what is the final dilution after it is diluted 3 times?

• 0.1

• 0.01

• 0.001

• 0.0001

What is the final dilution of a 50 ml diluent when a 10 ml sample is added to it?

• 0.014

• 0.015

• 0.016

• 0.017