The envelope of an animal virus is usually derived from the _____ of its host cell. a. cell wall c. capsule b. plasma membrane d. receptors

Q: The West Nile virus has what mode of transmission? a) Propagative b) Cyclo-propagative c)…

A: Answer- propagative

Q: How would you categorize a virus? a. as prokaryotic b. as eukaryotic c. as an archaeon d. none of…

A: Answer- Virus is a submicroscopic infectious agent that is non-living outside the cell and living…

Q: Answer the following regarding the varicella-zoster virus: a) the biology of the virus ( type:…

A: Varicella-zoster virus is the virus responsible for causing chickenpox and herpes zoster. Primary…

Q: The genome of a virus consists of (a) DNA (b) RNA (c) prions (d) DNA and RNA (e) DNA or RNA

A: Viruses are obligate parasites that can reproduce only inside the host cells. They also do not have…

Q: A bacteriophage can infect ________. a. the lungs b. viruses c. prions d. bacteria

A: The cell which does not have membrane-bound organelles and nucleus is termed as prokaryotic cells.…

Q: Viral “spikes” are usually involved in    A. Uncoating the virus particle  B. Killing the host cell…

A: The small microscopic organisms that cannot be seen with the naked eye are called microorganisms or…

Q: D) polyhedral The first step in viral infection is the recognition between the virus and the host…

A: The virus is a microscopic organism that infects other cells to survive. The virus can only…

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: A prophage occurs during the reproduction cycle of Select one: O A. A lysogenic virus. O B. Alytic…

A: Viruses possess two types of life cycle: lytic cycle and lysogenic cycle. The lysogenic cycle of…

Q: Match the best possible fit for the following Animal virus replication stages. A. Attachment B.…

A: Viruses contain nucleic acid/ribonucleic acid in the core region while the exterior/…

Q: What component is common for all viruses? a) Ribosome b) DNA c) RNA d) A protein coat e) A…

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

Q: Clear patches in cell cultures that indicate sites of virus infection are called a. plaques. b.…

A: Viruses are those microorganisms and they can live inside the host cells or other living things.…

Q: 1. A virus is made up of Protein coat and mitochondria protein coat and nucleic acid nucleic acid…

A: NOTE:- As you have mentioned two questions and not specified any particular question, so we are…

Q: Which receptors of the infl uenza virus are responsible for binding to the host cell? a.…

A: The influenza virus has  negative stranded RNA virus encapsulated by the M1 matrix protein. the…

Q: Ribosomes are the only organelles present in all viruses. a. True b. False

A: Ribosomes are a cellular organelle present inside the cell which are primarily designed for the…

Q: Which of the following are hosts of West Nile virus which are also responsible for infecting…

A: West Nile Virus: It is an ssRNA virus from the flavivirus genus of the Flaviviridae family. This…

Q: The virus transmits best in  A.enclosed spaces and sunny weather  b.encolsed spaces and cold/dry…

A: Viruses are infectious particles having a genetic material and are surrounded by a protein capsid.…

Q: Virusesa. have DNA confined in a nucleus.b. are relatively rare compared to living organisms.c. do…

A: Viruses are small and infective particles. These are primarily made up of nucleic acid and proteins.…

Q: A chemical component that is found in all viruses is:(a) Protein (d) RNA(b) Lipid (e)…

A: Viruses were discovered by Dmitri Ivanovsky. Viruses are acellular entities that are considered as…

Q: Which of the following is a reason that scientists do not classify viruses as living things? A.…

A: Qusstion - Which of the following is a reason that scientists do not classify viruses as living…

Q: virus does not have all of the parts that are needed to survive and reproduce. The Dody" of a virus…

A: Structure of VirusesViruses vary in their structure. an epidemic particle consists of DNA or RNA…

Q: The capsid of a virus consists of (a) protein subunits (b) nucleic acid (c) helical lipids (d) a…

A: Introduction:- Virus is a small, simple infectious agent that can only multiply in live cells of…

Q: Properties of viruses include: a. ability to replicate in any environment b. visibility under…

A: The small microscopic organisms that cannot be seen with the naked eye are called microorganisms or…

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: Viruses ____. A. all have a round shape B. cannot have a long shape C. do not maintain any…

A: Viruses differ in terms of structure, replication method, host and target cells. Viruses are…

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

A: Virus have spikes protein.

Q: A is a virus that infects a bacterial cell.

A: Lets know each of the terms:   Retrovirus : They are also viruses which uses RNA as their genetic…

Q: Viruses are not considered living because they a. are not made of cells b. lack cell nuclei c. do…

A: Viruses are an example of a sophisticated protein, nucleic acid, lipid, and carbohydrate assemblage.…

Q: Viruses_______. a. all have a round shape b. cannot have a long shape c. do not maintain any shape…

A: Viruses are very small and can not be seen with a light microscope, except for the poxvirus, the…

Q: The Size of Viruses varies from:   a. 1-100 nm b. 25-300 nm c. 100-1000 nm d. None of the above

A: A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA)…

Q: The envelope of an animal virus is derived from the of itshost cell.a. cell wall b. membrane c.…

A: Viruses are small  infectious agents that can replicate only inside a living cell. They infect both…

Q: Describe each way viruses may be classified. And Define each of the following parts of a virus,…

A:

Q: A prophage occurs during the reproduction cycle of Select one: O A. A lysogenic virus. B. A lytic…

A: Virus is a microorganism that is neither prokaryotic or eukaryotic. This is because the virus…

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: The nucleic acid of animal viruses enters the host cell througha. injection b. fusion c. endocytosis…

A: A virus is a very small submicroscopic agent that is known for causing infections in its host…

Q: After a virus has entered a cell and released its nucleic acid…   A. It begins feeding on cellular…

A: This is a multiple choice question.

Q: particular animal virus requires the use of DNA polymerase from its host, since it does not possess…

A: A virus is a pathogenic microorganism that is found everywhere on earth. Viruses cause infection in…

Q: acteriophage is a (A) Fungus (B) Bacteria (C) Virus (D) Protozoa

A: Bacteriophages are composed of proteins that encapsulate a deoxyribonucleic acid or ribonucleic acid…

Q: Which of the following is characteristic of all viruses?   A. A protein capsid.   B. a viral…

A: Viruses are classified as non-cellular, tiny infectious agents. They can only replicate inside the…

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: What is a negative strand RNA virus? O a. It is double stranded RNA. O b. It can be used directly to…

A: RNA  RNA is the genetic material of some bacteria and viruses. It may be either double or single…

Q: Which measurement is most reasonable for a virus? a. 65 nanometers b. 1 micrometer c. 900…

A: Virus  The virus are the submicroscopic infectious particle that only replicate inside the living…

Q: Which of these is not a general pattern of virus morphology?a. enveloped, helical b. naked,…

A: Virus is generally a nucleoprotein and ultramicroscopic entity which only becomes active inside a…

Q: Which of the following does NOT inititiate DNA synthesis ? (correct answer e) a. a single-stranded…

A: Deoxy ribo nucleic acid (DNA) is the genetic material of most organisms and it contains coded…

Q: Which of the following does NOT inititiate DNA synthesis?   a. a single-stranded DNA virus.  b. a…

A: The viruses can be classified into 3 classes based on the type of genetic material they carry. They…

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…

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.