Polyketide antibiotics are broad-spectrum antibiotics
What will be an ideal response?
Erythromycin
•Produced by actinomycetes
•Secondary metabolites
•Synthesized by a modular enzyme
Erythromycin
•Produced by actinomycetes
•Secondary metabolites
•Synthesized by a modular enzyme
-Behie et al. (2017) Molecules to Ecosystems: Actinomycete Natural Products In situ. Front. Microbiol.
Erythromycin
•Produced by actinomycetes
•Secondary metabolites
•Synthesized by a modular enzyme
Nonribosomal peptides
•Vancomycin
•Stendomycin
•Modular enzymes
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If chromosomal DNA from a host and phage DNA are carried by a transducing particle, what can be concluded regarding transduction in this case?
A. Transduction in this case is neither generalized nor specialized. B. Transduction in this case could be generalized or specialized depending on the phage involved. C. Transduction in this case is specialized rather than generalized. D. Transduction in this case is generalized rather than specialized.
The photosynthetic pigments of Heliobacterium and Heliophilum
A. are in separate membrane structures attached to the plasma membrane. B. are in separate structures and also in the plasma membrane. C. are in the plasma membrane and not in separate structures. D. are in separate membrane structures that are not attached to the plasma membrane.
Sex influenced traits are influenced by the presence of ____
a. cortisol b. estrogen c. testosterone d. thyroid hormone e. both estrogen and testosterone
Which of the following is a correct list of the types of plasmids that bacteria can carry?
a. metabolic plasmids, resistance plasmids, and virulence plasmids b. metabolic plasmids, resistance plasmids, virulence plasmids, replication plasmids, conjugation plasmids, transduction plasmids, and transformation plasmids e. metabolic plasmids, replication plasmids, and virulence plasmids