-
The immediate source of the flat sour bacteria is usually the
A. plant equipment
B. sugar
C. starch
D. soil -
Quinones and related antibiotics are
A. tetracyclines
B. actinorhodin
C. mitomycin
D. all of these -
Changes in which of the following characterizes mutations?
A. Phenotype
B. Genotype
C. Both (a) and (b)
D. None of these