In the Experiment Performed by Benzer for Intragenic Mapping Which

Multiple Choice

In the experiment performed by Benzer for intragenic mapping which of the following is the most critical control?

A) Perform the experiment with each different virus alone to determine the rate of reversion mutation
B) Re-type the strain of E. coli
C) Test the agar to make sure it can support E. coli and viral growth
D) Perform at least five dilutions to make sure the dilutions were performed correctly