Which viruses have potential for the highest mutation rates? Explain O RNA viruses as RNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied O RNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied

Which viruses have potential for the highest mutation rates? Explain O RNA viruses as RNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied O RNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied

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Description: Which viruses have potential for the highest mutation rates? ExplainRNA viruses as RNA polymerases do not proofread thus make many mistakes/mutations when viral RNA iscopiedRNA viruses as DNA polymerases do not proofread thus make many mistakes/muta

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter17: Bacterial And Viral Genetics

Section: Chapter Questions

Problem 5TYK

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BONUS: Why do RNA viruses such as the COVID coronavirus, influenza virus and HIV have much higher mutation rates than DNA viruses such as Herpes viruses? O DNA polymerases which copy viral RNA have much higher mutation rates than RNA polymerases which copy viral DNA O RNA polymerases which copy viral RNA have much higher mutation rates than DNA polymerases which copy viral DNA RNA viral 60S ribosomes make many ore mutations than DNA viral 40S ribosomes O RNA viral gyrases make more mistakes than DNA viral helicases
Why do RNA viruses seem to have higher rates of mutation? Selected Answer: RNA nucleotides are less stable than DNA nucleotides. Answers: RNA viruses can incorporated a wide variety of non-standard nucleotides. Viruses are more sensitive to mutagens. Replication of their genomes does not involve proofreading. RNA nucleotides are less stable than DNA nucleotides.
Higher rates of mutation are found in RNA viruses. Why? Replication of their genomes does not involve proofreading. RNA viruses can incorporate a variety of nonstandard bases. RNA nucleotides are more unstable than DNA nucleotides. RNA viruses are more sensitive to mutagens.
Remdesivir is an antiviral drug used to treat SARS-CoV-2 infections. It is a broad-spectrum antiviral, meaning it has activity against many different viruses. Remdesivir can be incorporated into a new RNA chain as a virus replicates and can interfere with the viral replication machinery. Template RNA Elongation New RNA SARS-CoV-2 RNA polymerase Template groove Nucleotide entrance Nucleotides Remdesivir Figure 1. A representation of remdesivir and the viral replication machinery for SARS-CoV-2. 6. Figure 1 shows that remdesivir "mimics” an important component of RNA replication. Which specific component of RNA replication has a structure like that of remdesivir? 7. Propose a hypothesis about how remdesivir might inhibit the virus's replication process.
What advantageous uses have viruses been shown to have? The activities of viral genes mimic those of host genes so they are useful for studying mechanisms of DNA replication and gene expression in their much more complex hosts. O Bacteria-killing viruses may play an increasing role in the war against bacterial pathogens. O All are correct. They can be used as a means to introduce foreign genes into human cells, which may serve as a basis for treatment of human diseases by gene therapy. O Insect-killing viruses may play an increasing role in the war against insect pests.
O O O A new virus is discovered. Its RNA genome encodes several proteins, including a reverse transcriptase enzyme. What can you conclude about replication of this virus? Its replication involves a double-stranded RNA intermediate Its replication involves a DNA copy of its genome Its replication depends entirely on cellular enzymes Its replication is entirely independent of cellular enzymes 00 A deficiency in Base Excision Repair (BER) would primarily sensitize you to mutations caused by radiation, X-rays O Chemicals in smoke, and UV radiation O Unavoidable, spontaneously occurring DNA damage
How are poly-adenosine tails added to subgenomic mRNAs of RNA viruses? Repeated uracil bases on the template cause the polymerase to slip backwards and recopy the sequence Polymerases copy a 200 base string of uracils found in some RNA viral genomes Polymerases copy a 200 base string of uracils added to the template during circularization Viral mRNAs undergo post-translational modifications, which include splicing of introns, a 5'-cap, and a 3'-poly-A tail
What type of molecule or cell is PGLO? C Origin region Arabinose operon arac ori Ndel Promoter PaaD PGLO (5,400bp) Ndel Ampicillin Resistance Gene Amp Hindll Ndel Green Fluorescent Protein (GEP) Gene Hindll 'ECORI GraphiceESchmid/2003 D O virus O RNA plasmid molecule O DNA plasmid moelcule O none of the choices are correct
Which of the following viral nucleic acids can be used as a template to produce mRNA? Select all that apply. plus strand DNA plus strand RNA minus strand RNA minus strand DNA
A" is a retrovirus. It can integrate DNA into random sites of human genome. Another virus "B" can integrate DNA at a specific site of human genome. Which one of these viruses would make a better vector for gene therapy? Briefly explain.
computer applications can be used to translate viral genomic sequence just as you did manually, however computer applications cannot tell you the meaning or significance of mutation. based on your experience what might be a disadvantage in using computer applications to compare new strains of the virus that causes COVID19. please asap dont copy from any other site i already have that answer
OF 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 omiss