Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
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Chapter 6.2, Problem 3RIA
Retrieve, Infer, Apply
3. Compare the structure of an icosahedral capsid with that of a helical capsid. How do pentamers and hexamers associate to form a complete icosahedron? Which virus would have a longer helical capsid: a virus with a 7,200 base pair DNA genome or one with an 11,000 base ssRNA genome?
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Chapter 6 Solutions
Prescott's Microbiology
Ch. 6.2 - MICRO INQUIRY Which capsids are icosahedral? Which...Ch. 6.2 - MICRO INQUIRY Are the capsomers at the vertices of...Ch. 6.2 - MICRO INQUIRY Why is T4 said to have binal...Ch. 6.2 - Retrieve, Infer, Apply 1. How are viruses similar...Ch. 6.2 - Retrieve, Infer, Apply 2. What is the difference...Ch. 6.2 - Retrieve, Infer, Apply 3. Compare the structure of...Ch. 6.2 - Retrieve, Infer, Apply 4. What is an envelope?...Ch. 6.2 - Retrieve, Infer, Apply 5. All four nucleic acid...Ch. 6.2 - Retrieve, Infer, Apply 6. The RNA genomes of some...Ch. 6.3 - MICRO INQUIRY Which of these mechanisms involves...
Ch. 6.3 - MICRO INQUIRY Why do the empty capsids remain...Ch. 6.3 - Explain why the receptors that viruses have...Ch. 6.3 - What probably plays the most important role in...Ch. 6.3 - How do you think the complexity of the viral...Ch. 6.3 - In general, DNA viruses can be much more dependent...Ch. 6.3 - Consider the origin of viral envelopes and suggest...Ch. 6.3 - Why are the proteins involved in virion assembly...Ch. 6.4 - Why is a lysogen considered a new or different...Ch. 6.4 - Define the terms lysogeny, temperate phage,...Ch. 6.4 - What advantages might a phage gain by being...Ch. 6.4 - Describe lysogenic conversion and its...Ch. 6.4 - How does a latent infection differ from a chronic...Ch. 6.4 - What is a cytocidal infection? What is a...Ch. 6.4 - Define the following terms: tumor, neoplasia,...Ch. 6.4 - Distinguish the mechanism by which dsDNA viruses...Ch. 6.5 - Prob. 1MICh. 6.5 - Prob. 1RIACh. 6.5 - Given that viruses must be cultivated to make...Ch. 6.7 - What are viroids and why are they of great...Ch. 6.7 - How does a viroid differ from a virus? From a...Ch. 6.7 - What is a prion? In what way does a prion differ...Ch. 6.7 - Prob. 4RIACh. 6 - Many classification schemes are used to identify...Ch. 6 - The origin and evolution of viruses is...Ch. 6 - Consider the separate stages of an animal virus...Ch. 6 - Chronic wasting disease (CWD) is a...Ch. 6 - Syn5 is a virus that infects photosynthetic...
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- Compare and contrast gel-electrophoresis for the separation of nucleic acids and SDS-PAGE for the separation of proteins. Explain the benefits of each when studying viruses.arrow_forwardOF rasc PDF Teas fill Which of the following is NOT a step in the replication of a retrovirus? A diagram illustrating the process is provided below. PDF UNOFFIC TRANSCR 59°F Mostly cloudy Virus Viral RNA Reverse transcriptase DDDDDD ↓Viral DNA Provirus mRNA mm Proteins mn Viral RNA Protease Plasma membrane Host DNA New virus O The single-stranded DNA forms a double-stranded DNA called a provirus, which is incorporated into the host cell DNA. O After a retrovirus attaches to the host cell, it injects its viral DNA and uses the host cell's machinery and materials to replicate. O After a retrovirus injects its viral RNA into a host cell, it forms a DNA strand by reverse transcription. O When the host cell replicates, a provirus produces the viral RNA needed to produce more virus particles. P O Search hun recc PDF maste omissarrow_forwardAGAROSE GEL ELECTROPHORESIS PRELAB ANSWER ALL QUESTIONS 1. Type of nucleotide is one of the factors that influence electrophoretic mobility. a) True b) False 2. Electrophoresis is used for DNA separation and not proteins. a) True b) False 3. DNA Polymerase is an enzyme to cut DNA into fragments for electrophoresis. a)True b)False 4. Electrophoresis apparatus consists of Gel buffer, chamber and DNA separator. a) True b) False 5. During electrophoresis, DNA fragments collect at the Cathode. a) True b) Falsearrow_forward
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