Retroviruses are characterized by ____.
A. RNA that is used as a template to produce DNA in a host cell
B. integrating RNA into the host’s chromosome
C. the enzyme alkaline phosphatase
D. having one strain that causes H1N1
E. the lack of a protein coat
Answer: A
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Which of the following is the scientific name for the common mushroom consumed by humans as a food source?
a. Saccharomyces b. Candida c. Agaricus d. Penicillium
What does it mean when we say a gene is "turned off"?
A) The gene is no longer working properly. B) The gene cannot be transcribed and translated into a protein. C) The gene has a mutation. D) The gene is now activated.
To make a vaccine against mumps, measles, or rabies, which type of viruses would be useful?
A) dsDNA viruses B) negative-sense ssRNA viruses C) positive-sense ssRNA viruses D) dsRNA viruses
Biomining takes advantage of prokaryotes ability to ________ metals.
A. reduce B. reduce the solubility of C. oxidize D. directly solubilize E. bioaccumulate