If the HIV did not have a reverse transcriptase enzyme, then which of the following would apply? Select one: a. The virus can make use of the reverse transcriptase enzyme from the host cell to convert its RNA into DNA b. Viral particles will be produced without reverse transcriptase enzyme since the original HIV is an RNA virus and needs to assemble RNA ant coat proteins together c. The virus will manufacture its proteins from its RNA using translation and ribosomes from host cell d. Provirus will not be formed and assembly of viral particles will never occur e. The virus will not be able to recognise the host cell and therefore entry into the cell is blocked
Q: HIV requires an enzyme called ______________ to convert its RNA genome to a DNA version. Why is this…
A: Human Immunodeficiency Virus attacks the body’s immune system threatening life with opportunistic…
Q: Different types of viruses have different types of genomes- some are double-stranded DNA, some are…
A: Genetic material can be either DNA or RNA DNA is made up of adenine, guanine, cytosine and Thymine…
Q: The Seneca valley virus packages the RNA genome using: A:Cellular chaperone proteins B:A stargate…
A: The Seneca valley virus also known as picornavirus causes several diseases in humans as well as…
Q: What is the function of reverse transcriptase in retroviruses? O A. It converts host cell RNA into…
A: Retroviruses are positive sense single stranded RNA viruses which replicate inside the host cells.…
Q: The HIV virus produces copies of its genome through: A. DNA replication B. Reverse…
A: HIV (human immunodeficiency virus) is a type of RNA virus that affects the person's immune cell.…
Q: Gene therapy aims to replace faulty or disease-causing genes with healthy DNA sequences. How might…
A: Treatment of disease or disorder by transferring desired genetic material using various methods into…
Q: RNA viruses require their own supply of certain enzymes because(A) host cells rapidly destroy the…
A: Viruses are defined as infectious agents that can survive only by invading the living cells. They…
Q: is able to bind to and cut off the 5' cap of the coronavirus RNA genome once it enters the host…
A: Coronavirus is RNA virus. In order to establish an infection every virus should find the susceptible…
Q: D) polyhedral The first step in viral infection is the recognition between the virus and the host…
A: The virus is a microscopic organism that infects other cells to survive. The virus can only…
Q: In some virus,DNA is synthesised by using RNA as template.such a DNA is called?
A: Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide chains that coil around…
Q: You want to develop a drug to block the lifecylce of the retrovirus HPV (Human Papilloma Virus).…
A: Retrovirus are those which have rna as genetic material and use reverse transcriptase to make DNA.
Q: Which of the following experimental results was NOT evidence that DNA is the genetic molecule rather…
A: Eukaryotes have linear DNA which is a double-chained helically twisted structure. it has a…
Q: For an RNA virus, what is the most important consideration? how to produce its genetic material as…
A: RNA viruses need to replicate RNA. Ten this RNA molecule act as viral mRNA. It is translated…
Q: after a successful infection by a viral particle, it integrates its genome into the host DNA. which…
A: During the infection, the viral particle successfully used to integrates its genome into the host…
Q: You are studying a new retrovirus. The viral protein (X) appears to play a role in the export of the…
A: The nucleus is the structure that encompasses the genome (DNA) in all eukaryotic cells. It is…
Q: Which of the following would be the first step in biosynthesis of a virus with a - (minus) strand…
A: D. Synthesis of double stranded RNA from an RNA template
Q: Explain how the attachment of viruses to bacterial cells is different from the attachment of viruses…
A: Any infectious agent or microorganism (Virus, bacterium, protozoa, ETC) that can cause disease is a…
Q: What should be the environmental conditions for the fusion proteins of the influenza virus to show…
A: Environmental factors that contribute to influenza epidemics are mostly unclear. There are different…
Q: Regarding the influenza virus, which of the following is false? A. The viral mRNAs are translated on…
A: * Influenza is also called as flu which is anan infectious disease caused by influenza viruses.…
Q: illustrates Fraenkel-Conrat and Singer’s experiment on the genetic material of TMV. What results…
A: Tobacco mosaic virus (TMV) is a positive-sense single-stranded ribonucleic acid (RNA) virus, which…
Q: Bacteriophages are viruses that infect bacteria. Depending on the bacteriophage, their genome can be…
A:
Q: Give any two differences between DNA and RNA. (b) What is recombinant DNA? Give two beneficial…
A: Differences between DNA and RNA DNA RAN Double stranded Single stranded Consists of…
Q: Provide a brief description behind your choice? Virus-mediated transfer of cellular genetic…
A: 1- A Transduction. Transduction is among the three basic mechanism of genetic exchange in Bacteria.…
Q: explain how the virus/vaccine’s mRNA uses the cells ribosome to make a COVID capsule spike
A: COVID-19 refers to an infectious disease that is caused by the coronavirus. It is a novel strain…
Q: . Disabling surface protease enzymes on lung cells would most likely interfere with what stage of…
A: Virus nuclear content whether single or double-stranded RNA or DNA is encapsulated in a protective…
Q: The FluMist influenza A vaccine is an attenuated live virus which has been: A:Was generated through…
A: FluMist is a brand name of a vaccine. It's FDA-endorsed to assist with stopping flu (influenza)…
Q: Which of the following statements is not true? Select one: a. Viruses multiply inside…
A: Answer- Viruses are composed of viral protein coat called as Capsid and internal genetic material.…
Q: which of the following can be used to stimulate an organism's immune system? A. Restriction Enzymes…
A: Immunology is a field of biological science that deals with the study of the immune system. An…
Q: There have been recent outbreaks of dog flu in the US. Why doesn't this virus infect humans? A)…
A: Dog flu virus (canine influenza) has Equine and Avian origin. This means it has been derived from…
Q: we can stop the biosynthesis stage of the viral life cycle (not the stages before it) by…
A: The virus life cycle in a host involves few stages: they are: Aattachment of phage to the surface…
Q: Rabies is a viral zoonosis that is transmitted directly from the bite of an infected animal. The…
A: Vaccines are a part of the immune system. The vaccine consists of a part of the antigen, inactivated…
Q: Which of the following is true of reverse transcriptase?a. It is required for the movement of DNA…
A: The enzyme engaged in reverse transcription is reverse transcriptase. The enzyme works through using…
Q: If a ssDNA animal virus needs access to a cellular DNA polymerase to replicate its viral genome, in…
A: Viruses are submicroscopic particles that don’t have their cellular machinery. The term virus was…
Q: Within a few weeks of treatment for herpes virus with the drug isonazide, a patient's herpes virus…
A: Herpes simplex virus is divided into two types as: herpes simplex virus-1 and herpes simplex…
Q: Which of the following models best depicts how the genetic information in a retrovirus is eventually…
A: Retroviruses include human immunodeficiency virus type 1, which causes AIDS, and human…
Q: As a scientist, you need to develop an antiviral drug that will affect the attachment of…
A: The T phages are infectious phages that is capable of infecting Escherichia coli. They are lytic…
Q: What is a negative strand RNA virus? O a. It is double stranded RNA. O b. It can be used directly to…
A: RNA RNA is the genetic material of some bacteria and viruses. It may be either double or single…
Q: Viral tropism refers to: A: The variety of organisms that the virus can infect B: The types of…
A: The cellular and host tropism of viruses is among the most essential and notable properties of…
Q: Which measurement is most reasonable for a virus? a. 65 nanometers b. 1 micrometer c. 900…
A: Virus The virus are the submicroscopic infectious particle that only replicate inside the living…
Q: acteriophages and animal viruses do NOT differ significantly in which one of the following steps ?…
A: Bacteriophages are viruses that attack only bacteria whereas animal viruses are viruses that attach…
Q: What is the function of reverse transcriptase in retroviruses? a) It converts viral RNA into…
A: Introduction Retroviruses:- Retroviruses are single-stranded RNA viruses that used RNA as their…
Q: In _____________, a bacteriophage may accidentally package random bacterial DNA and move it into a…
A: The horizontal gene transfer is the mechanism by which the DNA of one bacterium is transferred into…
Q: A new virus has recently been discovered that infects human lymphocytes. The virus can be grown in…
A: Viruses are of two types based on their genetic material present inside their protein capsid. DNA…
Q: Which of the following enzymes helps the +sense RNA virus Poliovirus to make multiple copies of its…
A: Introduction:- Poliovirus is a type of the Enterovirus C species, which belongs to the…
Q: You have purified a virus that infects turnip leaves. Treatment of a sample with phenol removes…
A: A virus is a small parasite that cannot reproduce by itself. Once it infects a susceptible cell, it…
Q: HIV is a retrovirus what does this mean? A. That is a DNA virus and it must make RNA before it can…
A: Answer is option B.) That it is an RNA virus and must convert its genetic material to DNA once…
Q: Which of the following best describes the mechanism of action of the antibiotic streptomycin? A. it…
A: Antibiotics are chemical compounds that can be used against the bacterial infection in people and…
Q: You are treating a patient with antiviral agent against the nucleocapsid, what part of the virus…
A: Virus are infectious agents that are capable of replicating only inside a live cell. The viral agent…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Viruses are host-specific, meaning they can only infect specific types of host organisms. For examble, the adenovirus is responsible for the common cold in humans but your dog can't catch a cold from you. Why is this? The proteins on the virus surface can only bind with proteins on the correct host surface. It is an enveloped or non-enveloped virus. The enzymes carried by the virus are compatible with the host. The genome of the virus is made of DNA or RNA.Which of the following statements are correct for DNA viruses? Mark all that apply. A.The genome consists of dsRNA B. A provirus stage occurs during viral replication C. The genome consists of two identical strands of DNA D. Replication requires reverse transcriptase Replication requires DNA polymerase E.The viral DNA must enter the nucleus for its replication F. Uncoating must occur for the virus to be replicated G.The viral genome acts as a template for production of viral proteinsWhich 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 template
- The dUTPase enzyme is used by the African swine fever virus to repair its own DNA, as the cells the virus infects in swine do not express the dUTPase protein. Which of the following is a reasonable explanation for the role of the dUTPase in the virus lifecycle? Explain your choice in 25 words or less. The dUTPase is necessary to remove dUTP from the viral genome, as uracil should not be present in DNA The dUTPase is necessary to remove dUTP from the viral genome, as uridine cannot correctly base pair with adenine-containing bases The dUTPase is necessary to remove dUTP from the viral genome, as uridine has the wrong sugar component for building DNA More than one of the above answers is correct None of the above answers is correctOF 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 omissThe Influenza virus is a (-)ss RNA virus that _________ bring its own RNA Polymerase into the host cell with it. This virus will gain entry into host cells through _____________ by using the Hemagglutinin Spike protein present on its envelope, which allows the viral envelope to merge with the host cell membrane. Select one: a.Does not need to / Fusion b.None of the Above c.Needs to / Membrane Fusion d.Does not need to / Endocytosis e.Needs to / Endocytosis
- 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.After a positive strand RNA virus ( Such as Coronaviruses) enters the host cell, the RNA is translated by ribosomes to create proteins associated with the virus (Such as, for example, the surface antigens like E and Spike proteins). How then, would the genetic material itself be replicated to be incorporated into the new viruses?.produce a diagram of the replication of a viral genome of stranded RNA simple [+] and mRNA production via Reverse Transcriptase. Produce a diagram of the replication and early maturation of a virus wrapped Produce a diagram of the replication and early maturation of a virus naked. Produce a diagram of the release of an enveloped virus by budding.
- Viruses with reverse transcriptase enzyme can make a DNA copy out of its RNA genome. What implications can this capability do in health hazards?Virus particles are metastable because: O a. Translation is enhanced O b.lt defines their host range for infection Oc. They transition from protecting the genome to uncoating it for replication O d. lt makes them more stable in the environmentWhich 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