Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 19, Problem 1COQ
Summary Introduction
To determine: The origin of viruses.
Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.
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Chapter 19 Solutions
Biology
Ch. 19.1 - Prob. 1CSCh. 19.2 - Prob. 1CSCh. 19.2 - Viral Reproductive Cycles Concept Check: From the...Ch. 19.4 - Genetic Properties of Bacteria Core Skill:...Ch. 19.4 - Prob. 1CCCh. 19.4 - Genetic Properties of Bacteria Concept Check:...Ch. 19.4 - Prob. 3CCCh. 19.5 - Prob. 1CCCh. 19.5 - Prob. 1EQCh. 19.5 - Prob. 2EQ
Ch. 19.5 - Gene Transfer Between Bacteria CoreSKILL The gene...Ch. 19.5 - Prob. 2CCCh. 19.5 - Gene Transfer Between Bacteria Core Skill:...Ch. 19.5 - Gene Transfer Between Bacteria Concept Check: Is...Ch. 19 - Prob. 1TYCh. 19 - The characteristics of viral genomes show many...Ch. 19 - During viral infection, attachment is usually...Ch. 19 - Prob. 4TYCh. 19 - Prob. 5TYCh. 19 - Prob. 6TYCh. 19 - Prob. 7TYCh. 19 - Prob. 8TYCh. 19 - Prob. 9TYCh. 19 - Prob. 10TYCh. 19 - How are viruses similar to living cells, and how...Ch. 19 - Prob. 2CQCh. 19 - Prob. 3CQCh. 19 - Prob. 1COQCh. 19 - Prob. 2COQ
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- Do you consider viruses to be alive? Take a position on the issue and perform research to find evidence in support of your argument. Share and discuss this evidence with your peers to come to a final consensus on whether viruses should be considered living organisms.arrow_forwardWhen Wimmer and coworkers announced that they had synthesized the poliovirus, they created considerable controversy. Some people feared that deadly and highly contagious viruses might be synthesized by bioterrorists. The researchers responded that they were merely applying current knowledge and techniques to demonstrate the principle that viruses are basically chemical entities that can be synthesized in the laboratory. Do you think scientists should synthesize viruses or other agents that can cause infectious disease? What are the implications of forbidding such research?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_forward
- Are viruses living? Discuss based from the properties of life in Biology.arrow_forwardPlease answer ASAP 1. There is evidence to dispove Crick's (1958) Central Dogma of Molecular Biology. one such evidence is how the coronavirus replicates genetic information. Explain fully how this process disproves Crick's Central Dogma 2. Describe how subgenomic RNAs are unique physically compared to regular RNA strands. Explain fully the benfit of this adaptation for viruses. 3.It is speculated that coronaviruses appeared on Earth before cells. Considering tge genetic material of coroniviruses and cells justidy fully this answerarrow_forwardare viruses living or non-living? Why!!arrow_forward
- As 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_forwardThe discovery of HIV virus was a race between two groups of scientists. Do you think the scientistic research should be a “race”? What are the pros and cons of such a race?arrow_forwardLab, you will need to design your own experiment that detects the nucleic acids from the given list of virus genes. This experiment's results could be used to identify the viruses present based on the genes and nucleic acids. Virus gene list • NP gene from different avian influenza virus (AIV) subtypes • H5 subtype of AIV • H7 subtype of AIV • H9 subtype of AIV Based on the above list of virus genes, design an experiment that will differentiate the genes based on the molecular weights of the different nucleic acids present. • What method will you use and why? • What specific % agarose will you use for this experiment? • How will the listed genes separate (which will be at the top and which at the bottom)? Include a drawing that shows the differentiated nucleic acid patterns you would expect to see as the results of your experiment. This pattern can be hand-drawn orarrow_forward
- The question is: A patient has arrived at the doctor complaining of acute respiratory symptoms (cough, runny nose, fever). The patient explains to the doctor that he was at a concert the night before and shared a water bottle with a friend who had similar symptoms. The doctor tells the patient that he has a virus. a.) What form of replication do you think this virus does use? How do you know? b.) Can the doctor prescribe an antibiotic for this patient? Explain.arrow_forwardViruses are not found in the tree of life. Why do you think so?arrow_forwardDo you think that this occurrence of medical breakthroughs that resulted to drug-resistant viruses might be prevented? If so, how?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