Question

Nutritional mutations can be defined as ________.

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

Answer 1

Nutritional mutations can be defined as those mutations that prevent an organism from growing on a minimal medium but allow growth on a complete medium.

Step-by-step explanation:

Nutritional mutations can be defined as those mutations that do not allow an organism to grow on minimal medium but do allow growth on complete medium.

This means that these mutations prevent the organism from being able to synthesize certain essential nutrients and rely on a complete medium to obtain them.

For example, a nutritional mutant may be unable to produce a specific amino acid and, therefore, require that amino acid to be present in the growth medium.