The milk plate showed the prescence of _____ while the nutrient gelatin showed the prescence of ______.
Fill in the blank(s) with the appropriate word(s).
caseinase, collagenase
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A typical primary response to an antigen peaks at about____
a. one-two days b. four-five days c. two weeks d. two months e. four months
The evolutionary ancestors of mitochondria are believed to have been ancient
a. Archaea. b. cyanobacteria. c. proteobacteria. d. green bacteria. e. Gram-positive bacteria.
The proteins associated with the light-dependent
reactions of photosynthesis are located a. on the outer membranes of the chloroplast. b. in the stroma. c. on the thylakoid membrane. d. throughout the cytoplasm of plant cells. e. in the thylakoid compartment.
Nutritional mutations can be described as ________
A) those mutations that change the composition of the medium B) those mutations that do not allow a bacterium or fungus to grow on minimal medium but do allow growth on complete medium C) all strains that are not auxotrophic D) those mutations belonging to the group called prototrophs E) those mutations caused by site-specific mutagenesis