The presence of ________ can be used to distinguish Staphylococcus from other Gram-positive cocci.

A. enterotoxins
B. catalase enzyme
C. protein M
D. kinases
E. hemolysins


Answer: B

Biology & Microbiology

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Which of the following is a mechanism of aminoglycosides?

A) inhibition of cell wall biosynthesis B) prevention of peptidoglycan crosslinking C) inhibition of DNA replication D) targeting the 30S ribosomal subunit

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Describe the relationship of protists to the major groups of eukaryotes. What will be an ideal response?

Biology & Microbiology

Refer to Figure 30-1. The development pattern labeled Type B is characteristic of:


a. arthropods.
b. platyhelminths.
c. cnidarians.
d. echinoderms.
e. annelids

Biology & Microbiology

Using the Linnaean system of nomenclature, corn is named Zea mays. What is the specific epithet in this name?

a. Zea mays b. Zea c. mays d. Quercus e. corn

Biology & Microbiology