You count the number of bacteria in 5 of the 1/400 mm2 small boxes of the central grid on the hemocytometer

Biology Nov 20, 2020

You count the number of bacteria in 5 of the 1/400 mm2 small boxes of the central grid on the hemocytometer. Your results are: 12 cells in box #1, 17 cells in box #2, 17 cells in box #3, 14 cells in box #4, and 16 cells in box #5. You are counting a 1:10 dilution of the original sample. What is the concentration of the original culture (in cells/ml)?