How many cells do you have???

Question

If you have 500,000 cells to start and you do a 10 to the 4th power dilution (a step series of 1:10 dilutions), how many cells do you have? Using the same information, how many cells would you theoretically have after the 2nd dilution (1:10 performed in each step)?

a) 5,000,000 b) 5 c) 5,000 d) 500 e) 500,000,000

Answer 1

The answer is 50 after 10 to the 4th power dilution.
After 2nd dilution (1/10 x 1/10 = 1/100), you will have c) 5,000.

Answer 2

e

Answer 3

A

Answer 4

E