A microbiologist believes that using proflavin as a test compound...

17. Mutation, Repair, and Recombination

Types of Mutations

17. Mutation, Repair, and Recombination

ANSWERS OPTIONS

Proflavin is not mutagenic and will not produce any detectable changes in the Ames test.

Proflavin causes base substitution mutations, and Strain B already contains a frameshift mutation.

Proflavin causes frameshift mutations, and Strain B already contains a frameshift mutation.

Proflavin is a potent mutagen and will mask the effects of any other mutagens in the Ames test.

A microbiologist believes that using proflavin as a test compound in the Ames test using two strains of Salmonella, Strain A (containing base substitution mutation) and Strain B (carrying frameshift mutation) would produce an inaccurate result. The microbiologist's statement is justified because: