In order to show that DNA in cell extracts is responsible for genetic transformation in pneumococcus, important corroborating evidence should indicate that _______ also destroy transforming activity.

A: enzymes that hydrolyze DNA
B: enzymes that hydrolyze RNA
C: enzymes that hydrolyze polysaccharides
D: boiling
E: enzymes that hydrolyze proteins


Answer: A: enzymes that hydrolyze DNA

Biology & Microbiology

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In the catabolism of arginine to generate ATP in Mollicutes, the first reaction is catalyzed by ________.

A. ATP synthetase B. arginine deaminase C. Embden-Meyerhof pathways D. Pentose phosphate pathways

Biology & Microbiology

Dinoflagellates

a. may produce bioluminescent tides that poison and kill fish. b. are parasites of fish and invertebrates. c. may undergo a population explosion that colors the ocean. d. are aquatic producers in freshwater or marine habitats. e. have all of these characteristics

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Which of the following microorganisms is NOT transmitted by sexual activities?

A) Neisseria gonorrhoeae B) Herpes Simplex Virus C) Trichomonas vaginalis D) Trepnema pallidum E) Helicobacter pylori

Biology & Microbiology

Why are STDs so easily spread?

What will be an ideal response?

Biology & Microbiology