.Which of the following statements is true? Vaccines cannot be made against viruses. Viruses are big enough to be seen with a light microscope. Viruses need to infect host cells to make copies of themselves. Viruses have organelles such as a nucleus

Q: 4. Here is an immunoassay to measure the explosive trinitrotoluene (TNT) in soil. An organic solvent…

A: Immunoassay is a biochemical technique that can detect the concentration of target molecules by…

Q: Enveloped viruses enter host cells through ____________ and leave cells through _____________. Check…

A: Virus are microscopic entities just like other microbes but are even tiny than bacteria . They enter…

Q: Choose the best below ? Capsid proteins are synthesized during which phase of viralreplication? a.…

A: during the replication of DNA the capsid protein are synthesized.

Q: 1. Give the correct term for each of the follow : a. Viruses that contain an enzyme that copies are…

A: The immune system is a defense system of the body against pathogens such as viruses, bacteria which…

Q: Why were Ignaz Semmelweis ideas ignored at his time in history 2. Which of its proteins does…

A: Ans-1 Ignaz Sammelweis was a Hungarian physician who disapproved the belief that post-operation…

Q: A person is infected with HIV. The individual is treated with several drugs, including…

A: Answer :  The correct option would be  It does not allow th viruses to make a dna copy of its…

Q: 12. The identification of bacteria by serolo gic tests is based on the presence of specific…

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

Q: 81) The RNA polymerase (RDRP) enzyme a. Can act on the nucleus only b. Can only be a viral enzyme.…

A: RNA dependent RNA polymerase is an enzyme that catalyzes the processes of RNA replication from RNA…

Q: Viruses can easily mutate exchange genetic material, mechanisms referred to as antigenic drift and…

A: Antigenic Drift - The virus changes genetically by accumulating mutations within the genes that code…

Q: 1. Which of the following sentences is CORRECT? A .P53 is an example of tumour activator gene B.…

A: p53 or Tumor protein 53 (TP53) is a regulatory protein-coding gene that regulates the process of…

Q: 3) What is the most successful treatment during pregnancy to reduce transmission of HIV from mother…

A: HIV (human immunodeficiency virus) is a virus that attacks cells in the body that help it battle…

Q: hat was the role of filtration in the discovery of viruses. 2) Imagine a new respiratory virus that…

A: Microorganisms are an integral part of the ecosystem. These are present everywhere. Microorganisms…

Q: Bacteria have evolved numerous mechanisms to prevent the invasion of foreign viral DNA (see…

A: Transfer of genetic material (DNA) from parent to offspring is termed as vertical transfer of genes…

Q: From: "Towards a universal flu vaccine" Researchers are trying to create a universal influenza…

A: Answer- H spike head The target researchers are focusing on as a universal stable antigen is on the…

Q: Antibodies are chemicals that the immune system make to attack viruses and bacteria. Each type of…

A:

Q: About Prion，which statements are correct？ It can be transmitted Infection can lead to fatal…

A: Prion is a cellular Protein (PrPc )that is present on the cell surface of a variety of organs and…

Q: The proteins on the surface of envelope viruses generally have to perform a few key tasks,…

A: 1. There has been no evidence that the translation of viral proteins is facilitated by proteins on…

Q: Find the wrong information about virus attachment and absorption to host cell. A. The surface…

A: Viruses are simple, noncellular entities consisting of one or more molecules of either DNA or RNA…

Q: 3. Imagine that you are a researcher at a pharmaceutical company charged with developing new drugs…

A: Answer: ANTI-VIRAL DRUG = These are the chemicals used to treat the infection causing pathogens,…

Q: A virus that typically forms an envelope is now being prevented from budding out of the host cell.…

A: Enveloped viruses (e.g., HIV) typically are released from the host cell by budding. During this…

Q: . A vaccine is a biological preparation that provides active acquired immunity to a particular…

A: A vaccine is either a cell suspension or a byproduct secreted by the cell which, when introduced…

Q: 3. Is the virus pictured below a naked virus or envelop virus? How can you tell? (2) 4. What is the…

A: Virus is a very small infectious agent, which has a separate kingdom of its own because it stays…

Q: 1. "Describe how the T‐even bacteriophage attaches and enters the host cells. Which part of the…

A: T-even bacteriophage-tolerant mutants are Escherichia coli strains that can adsorb T-even phages but…

Q: 1. Which of the follovwing is NOT considered CPE caused by virus infection? A. Cytolysis B. Electron…

A: Viruses: These are non -cellular ,simple microbes having one or more molecule of DNA and RNA…

Q: Will treating a viral infection with antibiotics change the course of the viral infection? No:…

A: Introduction: Antibiotics: Antibiotics are medical drugs that fight bacterial infections in animals…

Q: 1. Which of the following sentences is CORRECT? A. P53 is an example of tumour activator gene B.…

A: Note: Please upload other questions separately. Answer: 1. Introduction: Gram stain or Gram…

Q: The following diagram shows the life cycle of the lytic virus, the symbol that indicates the stage…

A: Viruses have two types of life cycle lytic and lysogenic. In lysogenic type of lifecycle it insert…

Q: 4. ") Determine the amount of antibody needed to make the following dilutions: Primary antibody To…

A: The volume of solution required = 10 ml ( 10000 uL) dilution factor given = 2000 Dilution factor=…

Q: 1. A vaccine is a biological preparation that provides active acquired immunity to a particular…

A: The phenomenon of vaccination that causes immunization of an individual against certain diseases is…

Q: 3. What are vaccines, and what do they have to do with the immune system?

A: Our immune system is necessary for survival. Without an immune system, our body would be vulnerable…

Q: 15. Antibiotics provide the best defense against viruses a. b. True a. b. False 16. Cocci bacteria…

A: Introduction  Small, single-celled organisms are known as bacteria. Nearly all areas of the planet…

Q: 2.  Briefly describe the replication of Adenoviruses, Filoviruses, Picornaviruses, and Retroviruses…

A: To begin the infection cycle, all viruses require interaction between a cell surface molecule called…

Q: Poliovirus contains a protein that possesses an NLS. A drug is developed that binds and hides this…

A: NLS or nuclear localization signal IA an amino acid sequence that tags a protein for import into the…

Q: Bacteriophage are very specific in the types of cells they can infect. Some see this as a possible…

A: A bacteriophage  also known informally as a phage  is a virus that infects and replicates within…

Q: Throughout history there are many different types of virus that have caused impacts both small and…

A: Throughout history, we have seen many viruses that impacted us in both positive and negative ways.…

Q: An 83 year old patient has been ill the past couple of days with an upper respiratory infection. Her…

A: Nursing counselling and advise involves certain intervention which helps process focusing on the…

Q: Antibiotics Vaccines No Answers Chosen No Answers Chosen Antivirals More than one of these No…

A: Antibiotics are chemical agents that inhibit or kills or prevent growth of bacteria and prevent…

Q: Macrophages are found in  basic IMMUNOLOGY Bone marrow Spleen Skin Blood liver

A: DISCLAIMER: Since you have asked multiple question, we will solve the first question for you. If you…

Q: 4. Applying: Use your knowledge of molecular and cellular biology to explain how the following…

A: SARS COV 2 or corona virus has created havoc by causing  pandemic recently and is still showing its…

Q: 3. Viruses, such as SARS-COV2, can cause disease if they are not eliminated by the immune system.…

A: A viral infection is open out of a dangerous virus throughout your body.  The virus makes copies of…

Q: 1. One of the following sentences is CORRECT A. By dissolving the cellular membrane is the most…

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

Q: these cells are growing in and use it to infect new cells for plaque assays and obtain the following…

A: In the above graph as the concentration of antiviral agency is increased, the number of plaque…

Q: 2. Which of the following parts of the IgG molecule are not involved in binding to an antigen? A)…

A: The antibody is the immunoglobulin molecule that is Y-shaped used to kill or neutralize foreign…

Q: Microbiology which of the following is NOT true about the envelope? O is involved in the virus…

A: The infectious agents that are live inside the other organism are called viruses. They are dependent…

Q: 8. Why are viruses considered non-living? a. Viruses cannot replicate on their own. b. Viruses do…

A: Virus are responsible for one of the most dangerous diseases like Ebola, influenza, small pox and…

Q: 1. If the human body can successfully fight off the mumps virus, why is it hard to fight AIDS? 2.…

A: 1. A solid resistant framework can effectively battle intruders like the infection that causes…

Q: antiviral drug

A: Viruses are tricky. They're small, mutate quickly, and make thousands and thousands of copies of…

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.