Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 17, Problem 6TYU
Summary Introduction
To draw:
The replicative cycle of a virus within a single-stranded genome that can function as mRNA.
Introduction:
Viruses are microbes that divide and increase their number using the replicative machinery of the host. Mostly, they have single stranded RNA as their genetic material but some viruses have double-stranded DNA as their genetic material.
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Students have asked these similar questions
If you must create a drug or prescribe a healthy food or drink to target the Covid virus, what part of the virus will you target? Why? Show the functional groups that will interact with the specific part of Covid.
Assume you isolate a single stranded (+) RNA virus. When you examine the proteins in the virus, you find that it does NOT contain replicase enzymes within its capsid. Which of the following is true?
This virus must have a gene that encodes replicase.
This virus will not be able to enter a host cell.
Its genome cannot be translated (the process of translation) by the host cell ribosomes.
A DNA copy of the viral genome has to be made before viral genes are expressed.
This virus must lack surface antigens.
briefly explain the situation below.
Larger viruses usually have a double-stranded genome, whereas small viruses typically have a single-stranded genome. What reasonable explanation can you offer for this observation?
Chapter 17 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 17.1 - Compare the structures of tobacco mosaic virus and...Ch. 17.1 - Prob. 2CCCh. 17.2 - Compare the effect on the host cell of a ly1ic...Ch. 17.2 - MAKE CONNECTIONS The RNA virus in Figure 17.7 has...Ch. 17.2 - Why is HIV called a retrovirus?Ch. 17.2 - MAKE CONNECTIONS Compare the CRISPR system to the...Ch. 17.3 - Describe two ways in which a preexisting virus...Ch. 17.3 - Contrast horizontal and vertical transmission of...Ch. 17.3 - Prob. 3CCCh. 17 - which of me following characteristics. structures....
Ch. 17 - Prob. 2TYUCh. 17 - A human pandemic is A. a viral disease that...Ch. 17 - Prob. 4TYUCh. 17 - RNA viruses require their own supply of certain...Ch. 17 - Prob. 6TYUCh. 17 - Prob. 7TYUCh. 17 - Prob. 8TYUCh. 17 - FOCUS ON ORGANIZATION While viruses are considered...Ch. 17 - SYNTHESIZE YOUR KNOWLEDGE Oseltamivir (Tamiflu),...
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- Explain the reason why segmentation of the genome provides a strong evolutionary advantage for negative strand viruses.arrow_forwardGiven that COVID19 has a single strand RNA for its genome, the number of rounds required to complete replicating 3 viable virus particles? a) 3 b) 4 c) 5 d) 6 e) 9arrow_forwardWhich of the following would be the first step in biosynthesis of a virus with a - (minus) strand of RNA? A. Synthesis of double stranded RNA from a DNA template B. Transcription of mRNA from DNA C. Synthesis of DNA from an RNA template D. Synthesis of double stranded RNA from an RNA template E. Synthesis of DNA from a DNA templatearrow_forward
- A virus is isolated, and individual virions appear spherical. What type of virus is this? A. Bacteriophage B. Helical C. Icosahedral D. Lysogenicarrow_forwardA new virus has recently been discovered that infects human lymphocytes. The virus can be grown in the laboratory using cultured lymphocytes as host cells. Design an experiment using a radioactive label that would tell you if the virus contains DNA or RNA genome.arrow_forwardIs there such a thing as a “good virus”? Explain why or why not.Consider both bacteriophages and viruses of eukaryotic organisms.arrow_forward
- Let's imagine you have discovered a new RNA virus and found a cell line to grow the viruses (lucky you!). Early experiments show virus' genome to be single-stranded RNA but you are unsure if it is positive or negative RNA. Explain how using anisomycin, an eukaryotic protein synthesis inhibitor, could potentially provide an answer.arrow_forwardYou are a virologist studying a newly isolated viral strain and have sequenced its genome. You find that the genome contains 25% A, 55% G, 20% C, and 10% U. Which of the following conclusions is likely correct? This is a single-stranded RNA virus This is a single-stranded DNA virus This is a double-stranded RNA virus This is a double-stranded DNA virus No conclusions can be drawn from this informationarrow_forwardImagine that a researcher discovers a new type of virus. This virus contains single‑stranded RNA with "negative" sense. Consider the image. Which statement is true regarding this virus? According to the Baltimore system, this virus would be classified as a type V virus. Based on the presence of single‑stranded RNA, this virus is likely similar to HIV. According to the Baltimore system, this virus would be classified as a type IV virus. This virus must use reverse transcriptase to produce mRNA.arrow_forward
- Viruses: a. Describe the structure and composition of viruses. What are three reasons that they are different from cellular organisms? b. Describe what a lysogenic bacteriophage is and how it is different from a lytic bacteriophage. c. Describe what is similar and different about the lifecycle of a non-enveloped DNA animal virus compared to an enveloped animal retrovirus.arrow_forwardCompare how retroviruses solve the problem of replicating an RNA genome in a eukaryotic host with how other types of RNA viruses solve this same problem.arrow_forwardAs a general rule, viruses are not considered to be alive based on several reasons. One such reason is that some viruses use RNA as their genetic material instead of DNA. Which of the five biological themes does this violate? Briefly explain why.arrow_forward
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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY