16.5. Two directiy AAPU saspasip ven though their dynamics are different. Which of the following differences between the tw iseases could lead to the same basic reproduction number? One disease has a higher transmission rate and a longer recovery period than the other. One disease has a lower transmission rate and a longer recovery period than the other. One disease has a lower transmission rate and a shorter recovery period than the other. for the other no one recovers

16.5. Two directiy AAPU saspasip ven though their dynamics are different. Which of the following differences between the tw iseases could lead to the same basic reproduction number? One disease has a higher transmission rate and a longer recovery period than the other. One disease has a lower transmission rate and a longer recovery period than the other. One disease has a lower transmission rate and a shorter recovery period than the other. for the other no one recovers

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter22: Prokaryotes: Bacteria And Archaea

Section: Chapter Questions

Problem 23RQ: Which of these statements is true? An antibiotic is any substance produced by a organism that is...

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Chapter 13: Viruses, Viroids, and Prions16. Bacteriophage: Compare and contrast virulent vs.temperate bacteriophage. In your response please address the following:a. Draw (separately) the components of the lytic and lysogenic cycle and describe the type of virus (virulent or temperate) that goes through each cycle.b. Identify and describe and key steps in each cycle.c. Is the infection productive or latent? Explain. *Be sure to define any terms and be specific in your response.
Q6.6. Imagine that a new, deadly coronavirus arises and starts a global pandemic. Experts are worried because the disease spreads easily, having a basic reproductive number, Ro, of 5. The good news is that an effective vaccine is quickly developed. What proportion of the population, pc, would need to be vaccinated to ensure that the disease can no longer spread?
17 Suppose that some members of a population are infected with a sexually transmitted virus that causes disease X, and some are infected with another sexually transmitted virus that causes disease Y. Some members of the population may be infected with both viruses. While diseases X and Y are similar in that they are both sexually trans- mitted diseases, the disease X is much more harmful to its carriers than the disease Y is to its carriers. Condom use is highly effective in preventing the transmission of either discase. Suppose scientists discover a cure for the sexually transmitted disease X. This cure (a vaccination) will eliminate the virus causing the disease X from its carrier before its carrier can suffer any harm from the virus. Everybody is immediately given this vaccination against the disease X. a What do you expect to happen to the prevalence of the virus causing the dis- ease X in the population? Draw a graph with time on the horizontal axis and prevalence of the virus…
Provide answer in no. 1
Which of these statements is true? An antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of other viruses An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of eukaryotic cells An antibiotic is any substance produced by a prokaryote that prevents growth of the same prokaryote.
Q6.6. Imagine that a new, deadly coronavirus arises and starts a global pandemic. Experts are worried because the disease spreads easily, having a basic reproductive number, Ro. of 5. The good news is that an effective vaccine is quickly developed. What minimum proportion of the population, p,, would need to be vaccinated to ensure that the disease can no longer spread? Round your answer to two decimal places.
Is there a correlation between the speed of a viral infection and its potential mortality rate? Explain.
23 Select all of the following that are true regarding viruses? Oncogenic viruses stimulate uncontrolled host cell division. Retroviruses use the enzyme reverse transcriptase to direct the production of DNA froma single stranded RNA genome. Animal viruses can be grown in tissue cultures, embryonated eggs, and live animal hosts. The shape of a virus may be determined by either its capsid or its envelope. Like bacteriophages, when animal viruses enter host cells, only their genomes enter while their capsids remain outside of their host cells. Antiviral drugs exist that target all stages of viral replication except the production of viral nucleic acids D00000
(-2). How can a virus pandemic end?
What defines a virus' host range? Know the multiplication steps (in order) for a virus (both bacteriophage and animal viruses). What happens at each step? What is the major difference between the steps in animal viruses vs. bacteriophages? Describe the lytic and lysogenic cycles of bacteriophage infection. What are the different types of viral genomes possible? What are the differences between entry and exit for enveloped vs naked viruses? o i.e. fusion, endocytosis, budding or exocytosis, lysis/bursting/rupturing, Explain how viruses are cultured. Why would viruses need to be cultured? What is a latent viral infection? What are cytopathic effects (know examples). Know characteristics of viroids and prions. What are they? What kinds of diseases can they cause (know examples for prions) How can viral infections be treated? bp
Host specificity of a virus is due to O 1) similarities in size between the virus and the host cell. O 2) the presence or absence of a cell wall on the host cell. O 3) particular genes that it shares with the infected cell. 4) compatibility between viral and cellular surface molecules. 5) the presence of an envelope.
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