You have a rabbit with an unknown illness. Apply Koch’s postulates to prove that a specific bacterial species is responsible for the rabbit’s illness. Identify all four postulates in your answer and describe how you would set up experiments to specifically address each postulate. – List and describe 2 distinguishing […]

Serial dilution Q: From a stock, 1.0 mL of bacteria is transferred to 9 mL of water until you reach a 10^-6 solution. Assume that on your final plate you counted 150 colonies from the 10^-6 solution where you plated 0.1 mL. Work backwards to show the CFU/mL you would expect […]

Each year, you grow tomatoes to eat in your salads during the summer and fall. In the past you have not used any type of fertilizer on your plants. This year, you have noticed advertisements for a “Logo Tomato Fertilizer” that, according to the manufacturer, will produce the “biggest tomatoes […]

many medicines are taken parenterally-that is, swallowed and absorbed from the digestive system. Aspirin and many antibiotics are examples. Even though these drugs may be very different chemically, the insructions for taking them often say “repeat dose every 4 to 6 hours.” What is the reasoning behind this dose rate? […]