You observe a virus infect and insert its DNA into a cell. A few days later you look at the sample and notice the cell reproduced but there is no visual presence of the virus. What type of cycle occurred? Analyze and discuss what happened here, how the virus could become active and provide an example of a virus that can do this

You observe a virus infect and insert its DNA into a cell. A few days later you look at the sample and notice the cell reproduced but there is no visual presence of the virus. What type of cycle occurred? Analyze and discuss what happened here, how the virus could become active and provide an example of a virus that can do this

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter17: The Immune System And Disease

Section: Chapter Questions

Problem 6RQ: Which statement is true of viral replication? a. In the process of apoptosis, the cell survives. b....

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HIV is a retrovirus what does this mean? A. That is a DNA virus and it must make RNA before it can make proteins. B. That it is an RNA virus and must convert its genetic material to DNA once it enters a cell. C. That is was a virus discovered in the recent past D. That is an RNA virus and goes directly to ribosomes of host cells to reproduce Please explain your answer!
Which process is most likely to result in a gene providing antibiotic resistance being found in a viral genome? A. Conjugation B. Binary fission C. Transduction D. Transformation
Is a Virus considered living or non-living? Justify your answer and Give one example of a virus.
A retrovirus is an RNA virus that uses the enzyme ______ to convert viral RNA into DNA.
Which statement is true of reverse transcriptase? a. It is a nucleic acid. b. It infects cells. c. It transcribes RNA to make DNA. d. It is a lipid.
As a scientist, you need to develop an antiviral drug that will affect the attachment of bacteriophage T4 on Escherichia coli, thus preventing the viral replication cycle in the host cell. By applying your knowledge, demonstrate how the antiviral drug will work
Which statement is true of viral replication? a. In the process of apoptosis, the cell survives. b. During attachment, the virus attaches at specific sites on the cell surface. c. The viral capsid helps the host cell produce more copies of the viral genome. d. mRNA works outside of the host cell to produce enzymes and proteins.
Which statement is true of viroids? a. They are single-stranded RNA particles. b. They reproduce only outside of the cell. c. They produce proteins. d. They affect both plants and animals
Why do viruses need to infect a host? A. In order to reproduce B. In order to grow from eggs to adult viruses C. In order to eat other viruses D. In order to properly socialize with other viruses
Viruses display many of the characteristics of living organisms. In particular, they reproduce, creating new virus particles. During reproduction, viruses make copies of their genetic material, and some of the copies contain mutations that are beneﬁcial to the virus. For example, HIV (human immunodeﬁciency virus), the virus that causes the disease AIDS (acquired immunodeﬁciency syndrome) mutates so often that its surface proteins change faster than we can develop antiviral drugs. New drug-resistant strains of HIV are appearing constantly. However, viruses can reproduce only after entering a living cell of an organism, because viruses hijack the cell’s machinery and use it to produce new viruses. Where does that combination of characteristics place viruses on the scale of nonlife to life? Are viruses living organisms? Nonliving? If neither of those categories ﬁts the properties of viruses, how should they be classiﬁed?
Part 1. Transduction is a form of horizontal gene transfer that involves viral infections. random mutation. physical contact between cells. acquisition of DNA from the environment. Part 2: Transformation is a mechanism of horizontal gene transfer that requires a virus to infect a cell. requires physical contact. transfers genetic information from parents to offspring. requires DNA to be present in the environment.
Choose the combination of answers that most accurately completes the statement.The envelope of an animal virus is derived from the of its host cell. a. cell wall c. glycocalyx b. membrane d. receptors