Which one of the following viruses has a single-stranded RNA genome that must be turned into a complementary molecule in order to synthesize viral protein?

A. Rotavirus
B. Adenovirus
C. HIV
D. Polio virus
E. Influenza virus


E

Biology & Microbiology

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All invertebrates have phagocytic cells, but lack antibodies

Indicate whether the statement is true or false.

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Lichens are symbiotic relationships established

between a. a club fungus and a green alga. b. a club fungus and a cyanobacterium. c. sac fungi and green algae. d. sac fungi and cyanobacteria. e. any of these.

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Autoimmune diseases occur when the immune system is unable to discriminate "self" from "nonself."

Indicate whether the statement is true or false

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