In the Ames Test for Mutagenicity

Multiple Choice

In the Ames test for mutagenicity,

A) reverse mutations convert auxotrophs to prototrophs that survive.
B) colonies are due to forward mutations that convert prototrophs to auxotrophs.
C) cells are treated with mutagen and only cells with no mutations survive.
D) cells are treated with excess amino acids and cells with mutations are killed.
E) rat liver enzymes are present to protect cells from mutation.