he Ames test is useful as a rapid screening test to identify those compounds that A. will respond to chemical agents. B. are mutagens. C. respond to the deletion of DNases. D. will protect an organism from cancer. E. will respond to chemical agents AND will protect an organism from cancer.

What is the scientific basis of the Ames Test?

You are testing a chemical that you suspect is a mutagen. You set up an AMES test, and for your control (without the mutagen added to the bacterial culture) you observed only a few colonies. After you added the mutagen to the test sample, you observed similar results to your control—only a few colonies grew. What can you conclude about the chemical?ANSWERYour test did not work.Your chemical is mutagenic.You should have used a different test than the AMES test to check whether your chemical is mutagenic.Your chemical is not mutagenic.

A scientist wants to create a drug that will kill cancer cells upon absorption in the intestines. In order for the drug to work effectively, it must not be absorbed until it reaches the intestines. The scientist tests different acidities of compounds to determine which combination will keep the drug intact until it reaches the intestines. What part of the engineering process is the scientist engaged in?A.TestingB.Making a planC.Determining a needD.Looking for improvements

1. What was the purpose of testing the known compounds?1 pointThe purpose of testing the known compounds was to observe the substance's atomic emission spectrum.The purpose of testing the known compounds was to determine the characteristic flame color of each of the substancesThe purpose of testing the known compounds was to predict the identity of the unknown compoundsThe purpose of testing the known compounds was to determine exactly how much of each element the substance contained

What is the purpose of preclinical testing in drug discovery?Select one:a. To assess the drug's safety and efficacy in animalsb. To determine the appropriate dosage in laboratoryc. To monitor the drug's long-term effects in patientsd. To test the drug on a small group of human volunteers