Can Cytomegalovirus (CMV) release any toxicant? What I mean is if the virus perform any kind of chemical rection while inactive like when it is in the environment releasing toxins or when is active inside the host such as inside the human body?

Q: Which of the following events occurs in the lytic cycle of bacteriophage T4 infection but NOT in the…

A: The viruses that infect bacterial cells are referred to as bacteriophages. There are two types of…

Q: Which type of virus is shown here? head -capsid - viral DNA -sheath tail tobacco mosaic virus HIV…

A: Viruses are microscopic acellular organisms that form an intermediate group between living and non…

Q: In electron micrographs of HSV infection, it can be seen that the intact virus initially reacts with…

A: The herpes simplex virus (HSV) is an infection that causes herpes in various parts of the body that…

Q: As a general rule, viruses are not considered to be alive based on several reasons. One such reason…

A: The first macromolecule to act as genetic material in a living organism was RNA. During the course…

Q: Viruses are considered non-living microbes, and yet they are responsible for many major disease…

A: Viruses are non - living organisms, they do not have their own metabolism. They reproduce using the…

Q: The envelope of an animal virus is usually derived from the _____ of its host cell. a. cell wall c.…

A: Animals, plants, and even microorganisms like archaea and bacteria are infected by viruses. In many…

Q: Which of the following are not DNA viruses?a) Hepatitis B virusb) Influenza A virusc) CMV virusd)…

A: Viruses have diversity in terms of the structure, the method of replication, host and target cells.…

Q: Which of the following viruses requires a surrogate virusinfection in order to cause disease?(a)…

A: In efficacy testing, the chemical inactivation cannot be determined for all viruses, because some…

Q: Viruses may include of any of the following structures, EXCEPT: a. DNA   b. ribosomes…

A: Viruses are the small microorganisms that are parasites to humans, plants and other organisms. These…

Q: 2. Viruses a. Are viruses living organisms? Why? i. Give the properties of a virus that would…

A: The living world comprises of the Plants, the Animals and the Microorganisms. The microorganisms are…

Q: Rhinovirus, the most common cause of colds, do not have a lipid envelope. Compared to enveloped…

A: Viral envelope is a loose membranous covering that occurs in some animal viruses, rarely plants and…

Q: The relative amounts of each nitrogenous base are tabulated here for four different viruses. For…

A: Viruses are microscopic agents that can replicate only inside host cells. They can infect all types…

Q: Classification of viruses is based on all of the following excepta) type of nucleic acid.     b)…

A: Viruses are the acellular organisms. These are the microscopic structures consists of genetic…

Q: Even though viruses are known to take over the host cell's metabolism and use the host enzymes for…

A: Viruses show genomic flexibility and almost all RNA viruses are able to change their host mRNA into…

Q: What is the basic structure of the HIV virus? What is the function of the glycoproteins of its…

A: We have to explain What is the basic structure of the HIV virus? And What is the function of the…

Q: You are arguing with one of your classmates. They say viruses are living, you say they are not. What…

A: Introduction: A virus is an infectious microorganism made up of a protein-coated segment of nucleic…

Q: The relative amounts of each nitrogenous base are tabulated here for four different viruses. For…

A: Viruses are microscopic agents that can replicate only inside host cells. They can infect all types…

Q: Generally, the DNA viruses have larger genomes than the RNA viruses. How would size be a factor in…

A: A virus, an unseen microorganism, infiltrates our body. It infiltrates our tissues and then…

Q: Which of the following processes occurs in both lytic and nonlytic viral infections?(i) Infected…

A: Statement (i) Infected cell ruptures to release viral particles is only limited to lytic cycle…

Q: Which of the following descriptions correctly identifies a main structural difference between…

A: Viruses are generally considered as borderline of life as they has non-living nature outside a…

Q: Fill in the data table below. An example attached below is provided as a guide.  Microorganism:…

A: Introduction  The influenza virus family includes the A, B, C, and D strains. Nearly every winter in…

Q: What type of viruses contain the enzyme lysozyme to aid intheir infection?(a) Bacteriophages (d)…

A: Answer - Lysozymes are the enzymes that can degrade almost all biological substance and is carried…

Q: Which of the following hypothetical viruses could NOT replicate in a host cell? It assumes that…

A: The correct answer would be option A i.e., the virus has ssDNA genome and replicates in the…

Q: All viruses have which components in their infectious particles? Nucleic acids and protein coats…

A: Viruses are usually organisms with acellular structures outside their host. They enter their living…

Q: Viral antigens appear on the surface of the infected cell in association with which of the following…

A: Answer is d.)MHC-II complex.

Q: Virus spikes are commonly associated with which of the following?   a. Non enveloped viruses b.…

A: Virus have spikes protein.

Q: Explain how long coronavirus microdroplets linger in the air and why. What does science tell us…

A: Coronavirus is an RNA (ribonucleic acid) virus that infects birds and mammals. It can cause mild to…

Q: 2.4 SARS-CoV-2 is mainly transmitted through respiratory droplets when an infected person sneezes,…

A: SARS CoV-2 virus is a betacoronavirus.They are enveloped , positive sense ,single stranded RNA virus…

Q: Give an example of each of the following types of viruses a. Double stranded DNA b. Single stranded…

A: Viruses are intracellular, obligately parasitic, non-cellular, sub-microscopic organisms that…

Q: Why are viral diagnoses difficult? Because they are very small and hard to see Because they rarely…

A: Virus  An Infective agent that typically consists of a nucleic acid molecule in a protein coat, is…

Q: Poxviruses are unusual among DNA viruses because their replication cycles takes place entirely in…

A: Introduction The Family Parvoviridae Includes Parvoviruses, Which Are A Group Of Animal Viruses.…

Q: Why do we use such terms as infectious  particles, agents, or active or inactive when referring to…

A: Viruses are microscopic organisms. They are obligate parasites as they do not have their own…

Q: All of the following statements correctly describes the properties of Influenza A virus EXCEPT…

A: Influenza A viruses are negative-sense RNA viruses with  single-stranded, segmented RNA viruses. The…

Q: In the virus image below, what is the likely function of the projections seen on the virus particle?…

A: Viruses are tiny nucleic acid units containing either DNA or RNA as their genetic material and…

Q: Viral infections can be either lysogenic and lytic, explain the differences between the two viral…

A: Introduction :  Viruses are submicroscopic organisms and they cause infections in a wide range of…

Q: What role do the host cells proteases play in infection, i.e., in viruses gainging access to the…

A: The explanation is given below.

Q: Which host cell function is essential for the reproduction of all viruses

A: Viruses are the obligate parasites.

Q: The following characteristics vary between different types of viruses except Select one: O a.…

A: Viruses are obligate parasites because they cannot survive outside the host cell. They are…

Q: Choose one of these Gastro-intestinal Tract viruses below and compare it to influenza list of…

A: Gastrointestinal (GI) tract inflammation known as gastroenteritis can be caused by various viruses.…

Q: Cytomegalovirus has the ability to move between adjacent cells: How does Cytomagalovirus contribute…

A: Cytomegalovirus continues to be an important pathogen in a variety of patient groups especially the…

Q: Which of the following terms is used for the stage of viral replication primarily responsible for…

A: Viruses are infectious agents that are tiny in size. Viruses are obligatory intracellular parasitic…

Q: Rhinoviruses, the most common cause of colds, do not have a lipid envelope. Compared to enveloped…

A: Viruses are considered to be connecting link between the living and non-living. They are obligate…

Q: Define the following terms: a. virus b. virion c. capsid d. retrovirus e. enveloped virus

A: Introduction: Pathogens are the organisms that cause disease. Different types of pathogens are…

Q: What allows the membrane of the HIV and the membrane of the host to fuse? The virus capsid dissolves…

A: Human Immunodeficiency Virus (HIV) infects the other cells by fusing its viral envelope with the…

Q: Why does the environmental conditions not really matter to the virus right now? In other words why…

A: Normally temperature does affect the growth of the viruses because temperature directly affects the…

Q: After the initial infection, may latent viruses be "reactivated" months or years later, replicating…

A: This is related to the lytic phase and the lysogenic phase of the viruses. Viruses after infection…

Q: Which of the following viral components must get into a cell's cytoplasm in order for the virus to…

A: A and C.

Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.