Restriction endonucleases are produced by ________.
A. bacteria
B. plants
C. fungi
D. protozoa
E. All of the choices are correct.
Answer: A
Biology & Microbiology
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Looking at a bacterial phylogenetic tree, in which group would you not expect to find photosynthetic bacteria?
A. cyanobacteria B. proteobacteria C. gram-positive bacteria D. purple sulfur bacteria E. heliobacteria
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The Calvin cycle produces six ATP for every six turns of the cycle
Indicate whether this statement is true or false.
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Chemotherapeutic agents that are natural products of microorganisms are most specifically referred to as ________.
A. antibiotics B. antimicrobial agents C. synthetic drugs D. semisynthetic drugs
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Many sponges produce both eggs and sperm and thus are
a. monoecious. b. dioecious. c. hermaphroditic. d. both a and c.
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