Which of the following dilution schemes results in a 1:100,000 dilution? (Choose all that apply)
> Step 1: transfer 1ml from the original sample to flask A with 99ml diluent; step 2: transfer 1ml from flask A to flask B with 99ml diluent; step 3: plate a 0.1ml sample from flask B
> Step 1: transfer 1ml from the original sample to flask A with 9ml diluent; step 2: transfer 1ml from flask A to flask B with 9ml diluent; step 3: plate a 1ml sample from flask B
> Step 1: transfer 0.1ml from the original sample to flask A with 9.9ml diluent; step 2: transfer 0.1ml from flask A to flask B with 9.9ml diluent; step 3: plate a 0.1ml sample from flask B
> Step 1: transfer 10ml from the original sample to flask A with 90ml diluent; step 2: transfer 10ml from flask A to flask B with 90ml diluent; step 3: plate a 1ml sample from flask B
Step 1: transfer 1ml from the original sample to flask A with 99ml diluent; step 2: transfer 1ml from flask A to flask B with 99ml diluent; step 3: plate a 0.1ml sample from flask B
Step 1: transfer 0.1ml from the original sample to flask A with 9.9ml diluent; step 2: transfer 0.1ml from flask A to flask B with 9.9ml diluent; step 3: plate a 0.1ml sample from flask B
You might also like to view...
The raw materials used for photosynthesis include
(a) O2. (b) C6H12O6. (c) CO2 & H2O. (d) CH2O.
Predators often avoid a mimic species because
of a. its bad taste. b. its toxic secretion. c. its resemblance to a model species. d. its painful sting. e. all of these
For a species with four pairs of chromosomes, ________ chromosome combinations are possible
A) 4 B) 8 C) 16 D) 20
During oxidation of substrates, electrons are removed along with
What will be an ideal response?