Viral receptors are important to viruses because these will allow them to complete their replication inside the cell. O True O False

Q: A Virus viral antigen List the Virus different cell D Activates | types (A to E) Activates Activates…

A: Immunity can be classified into innate immunity and acquired immunity. The inborn first-line defense…

Q: Viruses are free-living organisms. Select one: True O False

A: Viruses are usually classified according to their genetic material as DNA virus or RNA virus. The…

Q: Which of the following is characteristic of the lytic cycle? a) The virus-host relationship usually…

A: Introduction: A bacteriophage is a virus that infects bacteria and archaea and replicates within…

Q: The lipid content of an enveloped virus is produced from O freely available lipids viral made…

A: Microorganisms are those organisms that are not found by the naked eye while they are visible only…

Q: Select the correct statement about endogenous retroviruses. Take up to 8% of the human chromosomes O…

A: Retroviruses contain RNA as a part of their genome. Endogenous retroviruses in humans are an…

Q: Adenoviruses that cause colds do not have a lipid envelope. Such naked viruses tend to remain…

A: The organisms that cannot be observed by unaided eyes are the microorganisms. These organisms may be…

Q: Viruses can avoid the human immune system by Intracellular reproduction Remaining inactive in a host…

A: Viruses avoid the human immune system basically by increasing the intracellular reproduction.…

Q: HIV has a high mutation rate due to the imprecise opera-tion of its:(a) Viral membrane(b) CD4…

A: HIV (human immunodeficiency virus) is responsible for causing AIDS (acquired immune deficiency…

Q: In HIV infection, reverse transcriptase Multiple Choice O makes DNA from viral RNA. makes RNA from…

A: HIV refers to the infection that is caused by the human immunodeficiency virus (HIV). This virus is…

Q: Viruses are nonliving agents and reproduce independently from the host cells. True O False

A: Microorganisms are unicellular or multicellular widespread microscopic organism which cannot be seen…

Q: Describe the replication cycle of retrovirus like HIV (human immunodeficiency virus) Be sure to…

A: Retroviruses are different from other viruses because they contain the reverse transcriptase enzyme,…

Q: Herpesviruses remain incubated within specific hos cells and may subsequently reactivate * O True O…

A: Herpes simplex virus (HSV) causes disease by establishing a latent infection in peripheral neurons…

Q: (-)ss RNA viruses carry RNA polymerase within the particle. A. true B. false

A: RNA polymerases are the main enzymes that synthesizes RNA from a DNA template. During transcription…

Q: Some viral particles contain genomes composed entirely of RNA. O True O False

A: Genetic material of viruses It depends on type of virus. Generally there are 2 kind of virus group…

Q: An important feature of many pathogenic viruses is their resistance to interleukin-2. O interferon.…

A: Pathogenic viruses are master at invading a cell and invoking a pathological state they can get into…

Q: Genomic material of viruses can only be represented by single- or double-stranded RNA molecules. O…

A: Viruses are a type of submicroscopic infectious agent that cannot survive on their own and thus…

Q: During viral gene therapy (using the adenovirus system), does the new DNA that you introduce into…

A: To deliver a gene a vector is genetically engineered.Usually a gene that is inserted into a cell…

Q: HIV virus is classified as double¬ stranded RNA (ds-RNA) virus and belongs to a group of viruses…

A: Human immunodeficiency virus (HIV) is responsible for the development of acquired immunodeficiency…

Q: The envelope of an animal virus is derived from the_______________of its host cell.a. cell wallb.…

A: Viruses are considered non-living particles. For their reproduction and growth presence of host…

Q: Which TWO statements regarding viral infection are TRUE? O Viral particles may be shed during the…

A: Viral infection Proliferation of a harmful virus within the body. Viruses cannot reproduce without…

Q: hy does developing a HIV drug that targets viral envelope can lead to serious side effects

A: The human immunodeficiency virus (HIV) is a virus that targets the immune system of the body. AIDS…

Q: Which receptor of the influenza virus is most involved in binding tothe respiratory cells?a.…

A: The influenza virus is the causative agent of infection disease known as influenza also called flu…

Q: Which term best describes the specificity of a virus for its host? O lyticism O lysogeny tissue…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Which receptors of the influenza virus are responsible for binding tothe host cell?a. hemagglutinin…

A: Influenza virus belongs to class V that contains minus single stranded segmented RNA as their…

Q: Virus particles are metastable because: O a. Translation is enhanced O b. It defines their host…

A: Virus particles are called as metastable because they have to be both stable and unstable at…

Q: The type of viral replication in which a bacteriophage inserts its DNA into the host genome and…

A: Bacteriophages is defined as a virus that infects the bacteria which varies a lot in shape as well…

Q: Viruses are composed of RNA and DNA, capsid and envelope. Select one: O True O False

A: Viruses are not living things. Viruses are confounded assemblies of molecules, including proteins,…

Q: True or False:  1. Lytic viruses utilize the host’s machines to construct their viral components…

A: The term 'virus' is derived from the same word in Latin, meaning venom or poisonous fluid. It was…

Q: These family of viruses contain DNA as their genetic material, EXCEPT: O All of these contain DNA as…

A: A virus is an infectious microorganism made up of a nucleic acid segment covered by a protein coat.…

Q: Measles is an example of a disease caused by a bacterium. True False A dormant virus can be…

A: The viruses are microbes which proliferate only inside the host. These can not grow and reproduce…

Q: Viruses are not considered to be alive but are still considered cells. True O False

A: (Note: You have added two questions, I am sorry but I can able to answer only one question at a…

Q: The capsids of some, but not all viruses are surrounded by OA membranous envelope O A protein spore…

A: Viruses are the obligate intracellular parasites, which need living cell to grow and viruses infect…

Q: Viruses are acellular, meaning that the cell is different from eukaryotes. Select one: O True O…

A: The viruses are responsible for different viral infections and it contain DNA or RNA as their…

Q: Since our current pandemic is caused by SARS-CoV-2, a coronavirus, let us get to know it better by…

A: Sars Cov-2 virus refers to severe acute respiratory syndrome coronavirus 2 this if virus responsible…

Q: In contrast to (unlike) non-enveloped/naked viruses, ENVELOPED viruses O Can enter host cells by…

A: Answer is (a), Can enter host cell by fusion. Enveloped viruses enter cell by fusion whereas non…

Q: The SARS-CoV-2 virus has a genome made of O a. RNA O b. DNA O c. carbohydrates O d. lipid O e.…

A: Answer is Option a. SARS-CoV-2 has a  genome made of RNA.

Q: Which of the following effects do antiviral drugs not have?a. destroying extracellular virusesb.…

A: Antiviral drugs are medications for the treatment of viral infections. Most of the antiviral drugs…

Q: Reoviruses have ds RNA. Select one: O True O False

A: Reovirus is a member of family Reoviridae. It has a broad host range and can infect invertebrates,…

Q: Capsule is a layer of gelatinous structure in viruses and functions as buffer to external…

A: Viral capsids are the protein cages generated from a virus's protein shell, and they can vary in…

Q: RNA viruses require their own supply of certain enzymes because Select one: А. these enzymes…

A: Viruses are a nucleoprotein entity which is able to utilize the synthetic machinery of a living cell…

Q: A dormant virus can be activated and enter the Lytic cycle True False Viruses produce toxins in…

A: Those viruese which have another phase of replication called as latent phase and these viruses…

Q: Viruses can be treated with antibiotics. Select one: O True O False

A: If you take an antibiotic when you really have a viral contamination, the antibiotics attacks…

Q: Shape of a virus is determined by its envelope. Select one: O True O False

A: An infection is an infectious agent of small size and basic composition that can duplicate just in…

Q: Which of the following is not a component of HIV?

A: Human immunodeficiency viruses (HIV) are two Lentivirus (a retrovirus subgroup) species that infect…

Q: viral genome needs to get to the nucleus for the virus that replicates in the nucleus. the viral…

A: Viruses are small entities that stand on the line of living and nonliving things. Viruses require…

Q: The viral envelope is made up of _______.       A. Lipids and Proteins B. Proteins C. Glycoproteins…

A:

Q: Virus families which demonstrate latency include all of the following EXCEPT (which is false?)…

A: Latency in the virus might be a life-long phenomenon. Latent viruses live in the body of the host…

Q: The VPg protein from picornaviruses has which of the following function? O a. It packages the viral…

A: Picornaviruses are viruses that infect fishes, mammals, and birds. These group of viruses are…

Q: Influenza virus has a segmented (-) strand RNA genome, and each segment has its own nucleoprotein…

A: a. Influenza virus belongs to Myxovirus which is an enveloped RNA virus. b. Other types of viruses…

Virus

Viruses are infectious microscopic agents that can only reproduce in live cells of animals, plants, or microbes and are smaller than bacteria. Vertebrates, invertebrates, plants, protists, and fungi are among their many hosts. Viruses are unable to multiply on their own due to the lack of necessary cellular machinery, but they can guide the cell machinery of a host to make additional viruses by infection. The virus enters and attaches to a particular host cell, injects its genetic material, and reproduces by using the host’s genetic material. Viruses cause infection by taking entry into the host cell and using the host cell’s enzymes and raw materials to multiply.