The topical drug ________ inhibits protein synthesis in Gram-positive bacteria by preventing loading of isoleucine onto tRNA.
A. Amphotericin B
B. Bacitracin
C. Ciprofloxacin
D. Mupirocin
E. Tetracycline
Answer: D
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Archaeal promoters are most similar to those of ________.
A. eukaryotes B. viruses C. bacteria D. both viruses and bacteria
Which of the following is a special adaptation for brachiation in primates?
a. One offspring per pregnancy b. A rotating shoulder joint c. A complex placenta d. Large eye sockets
Refer to Figure 30-1. The tissue layer labeled 5 will give rise to the:
a. skeletal system.
b. muscles.
c. circulatory system.
d. lining of the digestive system.
e. nervous system.
Describe the characteristics of the Phylum Platyhelminthes. Check all that apply.
A. They exchange respiratory gases through the body wall. B. They have a complete digestive system. C. They are acoelomate. D. They are triploblastic.