Nutritional Mutations Can Be Described as _

Nutritional mutations can be described as _.

A) those mutations that do not allow a bacterium or fungus to grow on minimal medium but do allow growth on complete medium
B) all strains that are not auxotrophic
C) those mutations belonging to the group called prototrophs
D) those mutations caused by site -specific mutagenesis
E) those mutations that change the composition of the medium