An exponentially growing culture has an optimal density at 600nm(OD600) of 0.2 after 30 mins and an OD600 of0.8 after 80 mins. what is the doubling time?
You have a petroff-hauser counting chamber that contains a grid of 25 squares. if you have a culture that contains 5*107bacterial cells per mL of liquid, how many cells should appear ineach square of the counting chamber, on average?