Q: Prions containa. DNA only.b. protein only.c. RNA only.d. DNA, RNA, and protein.
A: Microbes are tiny organisms which we can not see only by eyes, we need instruments like microscope…
Q: Discuss the following statement: “Viruses exist in the twilight zone of life: outside cells they are…
A: The small microscopic organisms that cannot be seen with the naked eye are called microorganisms.…
Q: List characteristics common to all animal diseases caused by prions
A: Prion is a term used to describe proteinaceous infectious particles. Prions are misfolded proteins…
Q: Prion diseases affect only:
A: Prion disease has been linked to the human immune systems. It is suggested that the prion protein…
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: What happens to most cells that are invaded by viruses
A: Virus are obligate parasites. They are not metabolically active outside a host cell .
Q: /hat is true about the difference between prions and viruses?
A: Introduction:- Virus is a microorganism that is smaller than a bacterium that cannot grow or…
Q: Select all the statements that are true regarding the drug treatments available for infectious…
A: *Infectious diseases are caused by organisms like bacteria and viruses and fungi and parasites.…
Q: Misfolded prions are infectious because they:
A: Prion isoforms of the prion protein (PrP), whose particular capacity is questionable, are theorized…
Q: Since most of the diseases of modern times are caused by viruses, there are many antiviral drugs…
A: Antimicrobial drugs differ in their mode of action, including inhibition of cell wall, inhibition of…
Q: provide evidence supporting or refuting the following statement: Viruses are simple cellular agents…
A: Viruses are infectious agents that contain nucleic acids (DNA or RNA) which are covered by a protein…
Q: The following graph shows the trends in bacteria and viruses after they infect an organism. Part…
A: Introduction Bacteria are minute, single-celled organisms that can be found in large numbers in all…
Q: Explain how prions affect human health.
A: Neurodegeneration is a disorder which leads to damage to the neurons. This leads to the malfunction…
Q: Which of the following is a pyrimidine (one type of nitrogenous base) that is commonly found in all…
A: Since you have asked multiple questions, am answering the first question for you, for the remaining…
Q: Which of the following viruses belong to retroviruses? O a. 5mall pox O b. None .. O c. Rabies O d.…
A: A retrovirus is a kind of virus that places a copy in the host cell's DNA of its RNA genome and…
Q: All prions have which components in their infectious particles? Nucleic acids and proteins Proteins…
A: Prions are particles (non-living) that causes infections. They are very virus like but composed of…
Q: Select all of the statements that are true regarding prions O Prions are infectious nuclelc acids. O…
A: Prion illnesses may affect living creatures as diseased meat products can occasionally transfer the…
Q: HIV is a retrovirus that uses an enzyme called reverse transcriptase to reproduce. New…
A: The basic method by which HIV dominated in the human cell is by forming a genetic material which is…
Q: Which of the following is not associated with prions? a. Replicating shapes b. Mad cow disease c.…
A: An infectious agent is something that invades another living thing. Sorts of irresistible…
Q: Many disease-causing microbes do not cause disease in every host. Describe a possible reason for why…
A: Since we only answer 1 question in case of multiple question, we’ll answer the first question as 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: Sometimes Ab interferes with the attachment site on virions so they can't attach to a host cell.…
A: Antibody responses are important for avoiding many viral infections and may also contribute to the…
Q: An infectious disease is a disease that is caused when a pathogen is passed from one organism to…
A: An infectious disease is a disease that is caused when a pathogen is passed from one organism to…
Q: Which of the following statements correctly describes viruses? Select one: A. They can reproduce by…
A: Viruses are DNA or RNA containing and they are microscopic in nature. Usually they contain a…
Q: What is a virus? How do they differ from other infectious microorganisms? Make sure to explain each…
A: Virus are obligate parasites. These are basically DNA or rna molecules with a protein coat .
Q: True or False: Antibiotics are used to kill and treat viruses.
A: Viruses are the infectious organisms which are capable of replicating its genome only in the host…
Q: described
A: Colonization : Presence of bacteria on our body that may or may not necessarily cause harm.
Q: list at least three potential targets for antiviral therapies/drugs. For each one, briefly justify…
A: Anti Viral Drugs attack one of the various steps of viral entrance or replication or exit. These can…
Q: The reason why HIV is able to develop resistance to almost all single-drug therapy is because in a…
A: Ans- True Explanation- HIV is referred as human immunodeficiency virus. It attack on the body's…
Q: Some diseases shows signs and symptoms of the diseases quickly thank other diseases. How that…
A: Acute conditions/illness because of Infections (bacterial ,viral etc) Injury Accidents Misuse of…
Q: Choose the correct word: The virus attacks ______________ cells in the brain. Select one: a.…
A: Viruses are obligatory intracellular parasitic organisms. A virus must connect to a living cell,…
Q: Which of the following terms describes a disease that is caused by pathogens? * acquired infectious…
A: infectious diseases are caused by pathogens,which include bacteria,fungi,protozoa,worms,viruses and…
Q: Explain how prions cause disease.
A: The virions and prions are non-cellular infectious agents. These substances are smaller than viruses…
Q: Many infectious, pathogenic microorganisms can be carried and transferred by biting arthropods with…
A: Answer is (e) any of the above Infectious agents can enter by any of the mentioned method.
Q: Viruses are not considered living because they ________. a. are not made of cells b. lack cell…
A: Virus are proteinaceous infectious agents that is capable of replication only inside a living cell.…
Q: Which of the following is NOT used to treat active viral disease? a. Vaccines b. Antiviral drugs c.…
A: Viruses cause a variety of diseases in humans. Many of these diseases can be prevented by the use of…
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: In a [1] infection, the viral DNA is inserted into the host cells DNA. it remains there and is…
A: Viruses are particles that are made up of nucleic acid, protein, and in some cases, lipids. The…
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: Which of the following statements about prions is FALSE? O A They are not viruses. O B They…
A: Prions are made up of misfolded proteins that lack any genome. However, they have the ability to…
Q: Name the disease that viroids can cause.
A: Viroids are the smallest infectious pathogens . They are composed mainly of a short strand of…
Q: In protozoan parasites, what are the main molecular pathways of medication resistance? Talk about it…
A: Answer of the question given below...
Q: Which of the following best describes the mechanism of action of the antibiotic streptomycin?…
A: Streptomycin is a broad spectrum of antibiotics that can act against both gram-positive and…
Q: a virus goes through with path would it take and how would it enter to the brain? I am asking if a…
A: Virus enters the living cells through different routes. First and foremost thing for the viral entry…
Q: Prions are aÉ viral protein with a pathogenic effect a type of bacteria a mutated host protein a…
A: According to guidelines we have to answer the first question only. so please kindly post the…
Q: Vaccines and immunizations can sometimes be used to prevent viral infections. Antiviral drugs are…
A: According to the question, Vaccines, and Immunizations can sometimes be used to prevent viral…
A prion is one of the agents of disease in animals like a viroid. True or false?
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- Viruses that persist in the (host) cell and cause recurrent disease are called latent. True or false?Is a prion always pathogenic? Explain how or why.How common is ABV in the USA? In the United States, over half of adults have been infected with ABV by age 40. Once ABV is in a person's body, it stays there for life and can reactivate. Match terms with descriptions based on the text above. You can use an answer more than once or not at all. "Over half of adults have been infected with ABV by age 40." ABV could belong to this group of viruses: A. Human Papilloma Viruses B. Incidence of ABV C. Herpesviruses D. Prevalence of ABV by age 40
- Which of the following is a pyrimidine (one type of nitrogenous base) that is commonly found in all DNA molecules, but is not commonly found in all RNA molecules? adenosine cytidine thymine guanine uracil If retroviruses like HIV follow the historical pattern of a parasite adapting to a new host species (like syphilis in Europe over the past 500 years), then rapid virulence initially would likely be followed by: increasing virulence of the parasite, and decreasing resistance of the host increasing virulence of the parasite, and increasing resistance of the host decreasing virulence of the parasite, and decreasing resistance of the host decreasing virulence of the parasite, and increasing resistance of the host all of the above outcomes would be equally likelyPrion diseases affect only:Explain how prions affect human health.
- Describe the lysogenic cycle of a virus. What is the difference between the lytic and lysogenic cycle of a virus? What are vaccines? Define the words “Emerging Virus” and “Pandemic”. Give examples of human diseases caused by viruses. What is a prion and viron? Are prion and virons viruses? Give examples of human or animal diseases caused by prions and what organisms are affected. Book: Biology (Campbell) 11 edition Urry. Cain. Wasserman. Minorsky. ReeceTrue or False: There are antibiotics that target viruses?An antimicrobial drug binds to the HIV reverse transcriptase enzyme, preventing it from working. Which of the following is true of this drug? It would inhibit early replication steps of some viruses, but not affect normal eukaryotic cell activity. It would directly interfere with translation of some viral proteins and some eukaryotic proteins. It would block assembly/maturation steps of some viruses, and interfere with translation in eukaryotic cells. It would interfere with release of newly formed viruses from a host cell, but not affect eukaryotic cells. It would interfere with protein synthesis in bacteria, but not affect eukaryotic ribosomes. It would interfere with mRNA transcription in bacteria and viruses, but not affect eukaryotic transcription.
- A Toxoplasma gondii mutant (shown below) was made by Hunter and Sibley. The mutant T. gondii had a truncated ROP18 gene which prevented ROP 18 from binding to the parasitophorous vacuole as shown in the figure below. What would you expect to see when a host mouse was infected with this mutant T. gondii? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с Question 3 Homework. Unanswered d e b Full-length ROP18 Prodomain, Signal peptide N- Low-complexity basic regions 10 Membrane targeting Catalytic domain ROP18 888 Nucleus Ser/Thr kinase 87118 900 69 000 Ø 8888 T. gondii C C Truncated ROP18 The mutated ROP18 protein would bind with IRG proteins in the cytoplasm and neutralize the effects of IRG. N ROP18 8 8 The mouse would have difficulty clearing the T. gondii infection due to the mutated ROP18 since the mutation would decrease the host's defenses against the parasite. 88 The ROP18 mutation would have no effect on the host's…For any virus that infects animal cells, a vaccine is available. True or False ?Select all of the following that applies to the tradeoff between transmission and virulence that applies to many diseases. a) The tradeoff between transmission and virulence means that diseases always evolve to become more virulent. b) If greater virulence limits transmission, that disease will likely evolve to become less virulent than it could be. c) While making more copies of itself can increase the likelihood of transmission occurring, too much replication of the disease can make the host so sick it won't leave the house and spread the disease. d) A strain of a disease that replicates enough to be transmitted, but not so much that the host gets too sick to move, will be favored by natural selection over strains that either make the host too sick or do not replicate enough to be transmitted. e) If a disease can spread without making its host sick (e.g. when the host is asymptomatic), then the tradeoff between transmission and virulence…