A Scientist Created a New Auxotrophic Mutant of Bacteria That

Multiple Choice

A scientist created a new auxotrophic mutant of bacteria that is leu^- for a new Ames test.In order for the mutant to grow in the absence of leucine, a(n) _____ mutation would have to occur in the _____ gene.

A) missense; leu^-
B) intragenic reversion; leu^-
C) nonsense; leu^-
D) intergenic reversion; leu^-
E) silent; leu^-