1. You are provided with Stock Tube
A of antibiotic that has a concentration of 1000 μg/μl.
For lab, it is necessary to make the following dilutions: (4
pts)
a. Tube B: 10 μL of the 1000 μg/μl antibiotic
stock in Tube A + 390μL of buffer. The dilution in Tube B is
_____________ and the concentration is ______________.

b. Tube C: 10μL from Tube B +
40μL of buffer. Tube C represents a ____________dilution of
the stock in Tube A. The concentration in Tube C is
______________.