WHAT IF? As a physician, you have a patient withsymptoms that suggest a hepatitis A infection, but youhave not been able to detect viral proteins in the blood.Knowing that hepatitis A is an RNA virus, what lab testscould you perform to support your diagnosis? Explain theresults that would support your hypothesis.

WHAT IF? As a physician, you have a patient withsymptoms that suggest a hepatitis A infection, but youhave not been able to detect viral proteins in the blood.Knowing that hepatitis A is an RNA virus, what lab testscould you perform to support your diagnosis? Explain theresults that would support your hypothesis.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter21: Viruses

Section: Chapter Questions

Problem 22CTQ: The first electron micrograph of a virus (tobacco mosaic virus) was produced in 1939. Before that...

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Q5. a) Imagine you are a scientist in Wuhan in late 2019 and you have just sequenced thepathogen that is spreading rapidly, killing people due to pneumonia. How will you investigate theorigin of the pathogen?b) How will you use the sequence to guide vaccine discovery or drug development againstCOVID-19? (Hint: You can block the entry of virus, stop the virus from replicating in cells orlower the disease caused by the virus)
Corona-virus disease 2019 (COVID-19) is a new disease, caused by a novel (or new) corona-virus that has not previously been seen in humans. This virus can be a product of dark biotechnology? Explain why?
1. A particular virus with DNA as its genetic materialhas the following proportions of nucleotides: 20% A,35% T, 25% G, and 20% C. How can you explain thisresult?
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Corona-virus disease 2019 (COVID-19) is a new disease, caused by a novel (or new) corona-virus that has not previously been seen in humans. From the point of your opinion, this virus can be a product of dark biotechnology?
Can you help? I cannot seem to figure out all of the correct answers. I know lysis and budding is one but what is the other (s)? I am so lost! Thanks! Can Egress by viruses from the host cell occur by lysis or budding? Does egress by viruses immediately kill it? Does egress by viruses from the host cell happen after replication of its protein and genetic components and before assembly into new viruses? Is egress by virus from the host cell part of either lytic or lysogenic cycles?
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The first electron micrograph of a virus (tobacco mosaic virus) was produced in 1939. Before that time, how did scientists know that viruses existed if they could not see them? (Hint: Early scientists called viruses “filterable agents.”)
3. Why is it more difficult to develop an antiviral drug than an antibiotic? Think selectively toxic targets. What is a virus made of? Why can’t we target DNA/RNA/Protein?
1)How can viruses be beneficial? 2. Name two important features of retroviruses and give an example of one. 3. Why do you think that nomadic societies are less likely to support extremely virulent viruses? 4. What was the role of filtration in the discovery of viruses? 5. Imagine a new respiratory virus that spreads via contact, droplet, and airborne transmission and we have no medical measures to stop the infection. Outline public health measures (non-medical interventions that can reduce the spread of a disease) that can be taken to slow down the spread of this virus.