front 1 Which statements about viruses are true?Select the four statements that are true. | back 1
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front 2 The pointer is indicating the virus's _____. | back 2 genome |
front 3 Viral DNA makes mRNA by the process of _____. | back 3 transcription |
front 4 The lytic cycle of bacteriophage infection ends with the _____. | back 4 rupture of the bacterium |
front 5 The pointer is indicating the _____. | back 5 viral protein coat |
front 6 As a result of the lytic cycle, _____. | back 6 the host cell's DNA is destroyed |
front 7 In the lysogenic cycle _____. | back 7 viral DNA is replicated along with host DNA |
front 8 Cycle A is the _____ cycle and cycle B is the _____ cycle. | back 8 lytic ... lysogenic |
front 9 The genetic material of HIV consists of _____. | back 9 single-stranded RNA |
front 10 Which of these binds to receptor molecules on the host cell membrane? | back 10 A |
front 11 What is the function of reverse transcriptase? | back 11 It catalyzes the formation of DNA from an RNA template. |
front 12 What is the source of a viral envelope? | back 12 host cell membrane |
front 13 Which of these is reverse transcriptase? | back 13 C |
front 14 Which of these is the viral genome? | back 14 E |
front 15 Double-stranded viral DNA is incorporated into a host cell as a _____. | back 15 provirus |
front 16 How does HIV cause disease? | back 16 HIV kills cells that defend the body against disease. |
front 17 How do enveloped viruses differ from nonenveloped viruses? | back 17 They have a membrane-like outer covering. |
front 18 Which replicative cycle describes a virus that can integrate its genome into the host cell's genome? | back 18 Lysogenic |
front 19 Which enzyme inserts viral DNA into the host's chromosomal DNA? | back 19 Integrase |
front 20 How does HIV bind to a host cell? | back 20 The viral envelope proteins interact with CD4 and a co-receptor on the cell membrane. |
front 21 Which of the following events stimulates the production of viral particles in a host cell? | back 21 Activation of the host cell by cytokines, growth factors, or antigens. |
front 22 True or false? The human immunodeficiency virus (HIV) uses reverse transcriptase to make double-stranded RNA copies of its DNA | back 22 False |