Q: what are the purpose of detecting viruses in the laboratory
A: Viruses are major causes of diseases and often most common prevelant conditions like flu and common…
Q: Viruses that infect bacterial cells do not infect human cells, and viruses that infect human cells…
A: Virus is a non-living pathogenic agent which depends on its host for survival. It is composed of…
Q: Which of the following words apply to the overlay that maintains proximity between virus and…
A: Viruses are obligate parasites and require a host to survive.
Q: Discuss why viruses are not always bad
A: It is true that most viruses have a pathogenic relationship with their hosts, which means they can…
Q: Which of the following statements is not correct for viruses? (a) Viruses are obligate parasites.…
A: According to the question, Here we have to find out which of the following statement is not correct…
Q: Why is it inaccurate to refer to the “growth” of viruses?
A: Viruses are infection agents that contain a core of genetic material that is either RNA or DNA. They…
Q: This group is the easiest to kill using chemical disinfection. A Gram positive bacteria B Gram…
A: Introduction :- Disinfection is the process of elimination of microorganisms like bacteria , viruses…
Q: What is meant by the term emerging virus?
A: Viruses are microscopic agents that can replicate only inside the host cells. They can infect all…
Q: Why would it be harder to transmit some viruses out of doors?
A: Viruses are microscopic parasites, generally much smaller than bacteria. They lack the capacity to…
Q: All viruses can be grown in cell cultures. True False All viral infections can cause CPE. True False
A: Viruses are obligate intracellular parasites that replicate inside the host cells. Short nucleic…
Q: How do you kill a virus naturally?
A: An virus is a pathogenic, parasitic living being that isn't delegated being alive, since a cell is a…
Q: What conditions are necessary to cultivate viruses in the laboratory?
A: A virus is a very small submicroscopic agent that is known for causing infections in its host…
Q: Your biology lab instructor gives you a petri dish of agar covered with visible colonies. Your lab…
A: Bacteria are the prokaryotes that lack the well-defined nucleus.
Q: Student J and K were arguing about viruses and bacteria. Student K said that it would be easy to…
A: virus and obligate parasites which needs a living host to survive and bacteria are prokaryotic cells…
Q: A microbiologist obtained two pure biological samples: one of a virus, and the other of a viroid.…
A: Viruses (Virus particles or virions) are characterized of consisting of nucleic acids and coat…
Q: Explain how someone who was infected with SARS-CoV-2 could still test negative two days after…
A: Covid 19: Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus 2…
Q: why are non-enveloped viruses generally more resistant to disinfectants than are enveloped viruses?
A: Viruses are small microscopic organisms usually containing RNA as a genome that is coverd by a…
Q: Why does viruses are “tiny tricky,infections agents”?
A: Viruses are submicroscopic infectious agents that can replicate only inside the host cell. They are…
Q: PCR can be used to identify viruses. True False
A: PCR is the abbreviation for Polymerase Chain Reaction. This method was invented by an American…
Q: Which of the following statements about viruses is true?a) They contain DNAb) They contain RNAc)…
A: Viruses are obligate intracellular parasites that requires a living cell of the host for its…
Q: Viruses cannot be grown on any inanimate culture medium. Explain.
A: Viruses are ultra-microscopic organisms that are inert outside living organism. They are obligate…
Q: Select a drug or drugs that can prevent a viral nucleic acid from beingreplicated.a. retrovir b.…
A: Viral replication exclusively occurs in the host cell. It is characterized by the 7 major steps…
Q: Which of the following can be used to grow and study viruses? A. embryonated eggs B. living…
A: Virus are infectious particles having nucleic acid [DNA or RNA] surrounded by a protein coat. They…
Q: What technique must be used to visualize a virus?
A: Viruses are an acellular parasite that are not able to reproduce on their own. It is not considered…
Q: If you had another drug, Drug B, that the microbe was also susceptible too that was in every way…
A: A drug is a chemical substance that is used to treat any pathogenic, physiological or psychological…
Q: how a scientist could use an electron microscope to identify a virus?
A: Answer: Introduction: Microscope is an optical instrument to study microscopic organisms such as…
Q: Why don’t scientists usually consider viruses living? A.They do not have DNA B.They do not have…
A: The cell is the basic structural and functional unit of life. It carries out various functions in…
Q: Where do I find references to support that viruses are living organisms
A: A virus is defined as a microscopic infectious agent. They can only divide inside the body of the…
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: What are three reasons that retroviruses are studied so much these days?
A: Retroviruses are enveloped, icosahedral viruses that possess a RNA of about 7-10 kb. They are…
Q: How can humans see viruses?
A: Viruses are acellular organisms that do have a metabolism of their own. They depend on the specific…
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: Which of the following is NOT a characteristic of viruses? they are smaller than prokaryotic cells…
A: Viruses have a simple structure made up of a nucleic acid (DNA or RNA) enclosed with a protein coat.…
Q: Which of the following is not used to culture viruses in the laboratory? A Guinea pigs B B cell…
A: Viral culture is a laboratory technique in which the ability of virus to infect the cell is tested…
Q: You have found a putative virus which is able to infect a bacterium causing increased mortality and…
A: Serial dilution is a series of sequential dilutions that are performed to convert a concentrated…
Q: Which of the following words apply to the overlay that maintains proximity between virus and…
A:
Q: Please refer to the passage to help you answer this problem. Which of these characteristics is NOT…
A: Viruses- they are agent with small size and simple composition that can multiply only in living…
Q: Can hand sanitizer kill viruses?
A: The virus can be defined as the submicroscopic infectious agent that can replicate only inside the…
Q: How do some bacteria protect themselves against the viruses? protect themselves by making antibodies…
A: A bacteriophage is a virus that infects and replicates within bacteria and archaea .
Q: A patient presents at the clinic with an acute viral infection. Assays that analyze the viral life…
A: Viruses are not living cells, viruses are packs of genetic materials enclosed within a protein coat.…
Q: Fill in the table. An example below is attached as a guide. Disease: Influenza A Microorganism:…
A: Influenza It is a viral infection that is caused by the influenza virus. It is commonly called flu…
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: How can DNA sequencing be used to identify other classes of pathogens such as viruses
A: DNA Carries the gene which codes for the protein .These proteins are responsible for expression of…
Q: Why are viruses not considered to be alive?
A: Every species or organism have certain characteristics which classify them as living or non - living
Q: virus broke out in a remote area. There are no infected people in my area yet. But we have lots of…
A: Viruses are obligate pathogens that can infect almost all types of organisms. A single type of virus…
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…
A virologist needs to remove all bacteria from a solution containing viruses without removing the viruses. What should the scientist do?
Step by step
Solved in 2 steps
- The culture primarily contains nutrients such as sugars and a gel (agar). Why don’t viruses grow in a culture like bacteria do? Explain.how a scientist could use an electron microscope to identify a virus?A microbiologist obtained two pure biological samples: one of a virus, and the other of a viroid. Unfortunately, the labels had been lost. The microbiologist felt she could distinguish the two by analyzing for the presence or absence of a single molecule. What molecule would she search for and why?
- The illustration best describes: A dormant bacterial infection A dormant viral infection An active bacterial infection An active viral infectionViruses cannot be grown on any inanimate culture medium. Explain.If a person contracted MRSA and no antibiotics are working on them, how would you go about finding a way to treat their infection? Describe, in detail, how you would devise a plan to save their life utilizing your knowledge of bacteria and viruses.
- Why did viruses not fit well with Robert Koch's Postulates for the characterization of pathogenic microbes as disease-causing infectious agents?A virus broke out in a remote area. There are no infected people in my area yet. But we have lots of samples. Please explain in detail how we got a lot of samples.Which of the following highly contagious viruses is a single-stranded ribonucleic acid (RNA) virus with a helical capsid and envelope and is transmitted by coming in contact with respiratory secretions? "This is a highly contagious respiratory illness transmitted when an infected person coughs or sneezes virus particles into the air," the health department said in a written statement. "It's so contagious that if one person is sick and spreading measles, nine out of 10 people around them who aren't immune will get it, too." Group of answer choices a. Measles b. Parvovirus c. Coxsackie virus A d. Rhinovirus
- What is the importance of the agar overlay technique in virus isolation?A 42 year old man developed a “flu-like” syndrome with fever, sore throat, headache, and myalgia. Viral culture was ordered for laboratory confirmation of influenza. Which of the following would be the best specimen for isolating virus responsible for the infection? A- Blood B- Nasopharyngeal washing C- Stool D- Saliva E- Vesicle fluidThe question is: A patient has arrived at the doctor complaining of acute respiratory symptoms (cough, runny nose, fever). The patient explains to the doctor that he was at a concert the night before and shared a water bottle with a friend who had similar symptoms. The doctor tells the patient that he has a virus. a.) What form of replication do you think this virus does use? How do you know? b.) Can the doctor prescribe an antibiotic for this patient? Explain.