When used in a description of viruses, the term replication includes
A. the production of multiple copies of a virus by a host cell.
B. the copying of the genomic RNA in an RNA virus.
C. the copying of the viral DNA in a DNA virus.
D. All of these choices are correct.
Answer: D
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Paracellular transport is associated with which of the following?
A) adherens junctions B) integrins C) desmosomes D) tight junctions E) hemidesmosomes
How does the production efficiency of ectotherms and endotherms compare?
A. Usually higher in ecotherms than in endotherms. B. Usually lower in ecotherms than in endotherms. C. Approximately equal in ectotherms and endotherms. D. Usually negative in ectothems and positive in endotherms. E. Usually positive in ectothems and negative in endotherms.
In cell signal propagation, what does dimerization do?
a. moves water across the plasma membrane in large quantities b. allows activated receptors to interact extracellularly with the surrounding environment c. enables the intracellular domains of the receptors to activate each other d. shuts down the signaling pathway
Which of the following statements regarding genital warts is incorrect?
A. Certain strains predispose a person to cancer of the cervix or penis. B. They form large cauliflower-like masses called condyloma acuminata. C. They are not common in the United States. D. They are sexually transmitted. E. They often occur on the penis, vagina, and cervix.