uction and 1.Lytic-"light- 1. - Virus binds to receptors on the cell membrane 2. -Viral DNA takes over activities of the cell 3. New viral DNA is made from old cell DNA New viruses are assembled 4. 5. The cell bursts (yses) releasing the new virus
Q: Simian Virus 40 is carcinogenic in primates. 1). which molecule of the virus 2). what particular…
A: Viruses come under the category of microorganisms (tiny creatures) that can be found in the…
Q: How do the signs and symptoms of recurrent herpes simplex differ from those of the primary…
A: Herpes Simplex Virus (HSV) type -1 causes herpes labialis (cold sores or fever blisters) in the…
Q: The general steps in a viral multiplication cycle area. adsorption, penetration, synthesis,…
A: A pathogen or infectious agent is a biological agent that causes illness or disease to its host.…
Q: Summarize the key difference in the invasion of cells by: a. HIV b. Adenovirus c. Anthrax
A: NOTE:- "As you have posted multiple sub-parts under one, we will solve the first three parts for…
Q: Which is the usual order of a viral replication cycle when it is making new virions? O Host…
A: Viruses are the obligate parasite. They require host cell to complete their cycle from the…
Q: A corona virus of mass (m) jumped from a cell Infected to uninfected cell and at an angle with the…
A: 1) The coronavirus jumps from one infected cell to another uninfected cell at an angle to the…
Q: Students are debating about differences between viruses and cells. Which student’s argument is MOST…
A: Viruses are the connecting link between living and nonliving kingdom. So they are not regarded as…
Q: Comparing Viral Structures 1. Not all viruses are the same. Viruses can have different shapes,…
A: Viruses are microorganisms which are considered to be non living as they cannot live on their own
Q: A virus in which life cycle can be triggered to enter into the other one? What triggers that event?
A: All infections rely upon cells for proliferation and metabolic cycles. Without help from anyone…
Q: While a prophage genome is integrated into the host cell chromosome, it is O temperate. latent and…
A: Viruses are small infectious agents that only multiply inside live cells.
Q: Viruses are said to be “obligate intracellular parasites.” What does this mean with respect to how…
A: Viruses are infectious particles that requires host cell machinery to replicate. Viruses are…
Q: Describe the replication cycle of retrovirus like HIV (human immunodeficiency virus) Be sure to…
A: Retroviruses are different from other viruses because they contain the reverse transcriptase enzyme,…
Q: Figure 17.6 Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane.…
A: A virus is a very small submicroscopic agent that is known for causing infections in its host…
Q: tumor viruses
A: Tumor viruses are the viruses which are capable of causing a wide variety of human diseases. The…
Q: In general, RNA viruses multiply in the cell __, and DNA viruses multiply in the cell __. a.…
A: Viruses are microscopic organisms that cannot be seen with naked eyes. The most unique nature of the…
Q: 2. Use the table below to compare Bacteriophages and Animal Viruses. Use the recorded lecture to…
A: As per the guidelines, we are supposed to answer only the first question please post the other…
Q: 27. Class VI animal viruses include HIV. Based on the type of viral genome, how is this class…
A: Group 6 animal viruses are single-stranded so option A is wrong.
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: 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: A prophage is a/an ___________stage in the cycle of ____________ .a. latent, bacterial virusesb.…
A: A virus is a submicroscopic infectious agent. Multiplication cycle of most animal viruses comprise…
Q: HIV attacks only specifi c types of human cells, such as certain white blood cells and nerve cells.…
A: BASIC INFORMATION SEXUALLY TRANSMITTED DISEASES These are the disease which spread from one person…
Q: Which cells are the main target for HIV?
A: HIV replication starts when the virus reproduces itself. HIV involves CD4 cells for replication.…
Q: Essay Writing Direction: Make a short essay about the "The Entrance of Corona Virus in the Cell"
A: Coronaviruses are single-stranded RNA viruses with a diameter of roughly 120 nanometers. They are…
Q: What happens immediately following uncoating of a minus strand RNAvirus? O Transcription of MRNA…
A: This is majorly found in some viruses , where uncoating is found that means genome is completely…
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: Which TWO statements regarding viral infection are TRUE? O Viral particles may be shed during the…
A: Viral infection Proliferation of a harmful virus within the body. Viruses cannot reproduce without…
Q: membrane -Virus binds to receptors on 2. Viral DNA takes over activit 3. New viral DNA is made fro…
A: Bacteriophages have a lytic or lysogenic cycle. The lytic cycle leads to the death of the host,…
Q: Why is selective toxicity almost impossible for viruses? Viruses are so small compared to bacteria…
A: Selective toxicity :- Selective toxicity of antimicrobial agent refers that, particular…
Q: + 13. Compare the following: Virus N/A Domain Size Genome (RNA, DNA, both) Organelles? Which are…
A: virus A length of nucleic acid (either DNA or RNA), encased in a protein coat, makes up a virus. A…
Q: True or False: 1. Lytic viruses utilize the host’s machines to construct their viral components…
A: The term 'virus' is derived from the same word in Latin, meaning venom or poisonous fluid. It was…
Q: 13. As a response to viral-infected cells, the following cell gets activated? A. TH1 B. TH2 C. TH3…
A: Introduction A host is required for the growth of viruses, which are microscopic infectious…
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: The lytic cycle of a bacteriophage can be characterized by A large number of phages are released at…
A: Virus gains entry into the host cells. A bacteriophage is a virus that attacks bacteria. According…
Q: 14. Select the answer that details the general steps in viral multiplication. O Endocytosis,…
A: Viruses are acellular and therefore, they use host cell machinery for their own synthesis. Although…
Q: The lipid content of an enveloped virus is produced from O freely available tipids O viral made…
A: Host membrane
Q: In contrast to (unlike) non-enveloped/naked viruses, ENVELOPED viruses O Can enter host cells by…
A: Answer is (a), Can enter host cell by fusion. Enveloped viruses enter cell by fusion whereas non…
Q: what characteristics of a virus protects if from immune system rcognition Infected tissue cell…
A: Answer : Option "B" is correct - Antigens repel macrophages infected cells
Q: viral genome needs to get to the nucleus for the virus that replicates in the nucleus. the viral…
A: Viruses are small entities that stand on the line of living and nonliving things. Viruses require…
Q: 1. Predict the replication step (after it has entered the host cell) for the newly discovered…
A: Double stranded DNA viruses replicate mostly in host nucleus. Few viruses may replicate in the host…
Q: HIV attacks only specific types of human cells, such as certain whiteblood cells and nerve cells.…
A: Any infectious agent or microorganism (Virus, bacterium, protozoa, ETC) that can cause disease is a…
Q: Biology of Herpes Virus – what types of structures do they have? What disease they cause – what is…
A: An infection caused by the virus HSV(herpes simplex virus) . There are two types of Herpes Simplex…
Q: Think about the cells that viruses infect. Pick out the correct statements below. A. The host…
A: Introduction :- A virus is a small parasite that cannot reproduce by itself , it uses the host cell…
Q: 1. characteristic that a virus share with an 2. name given to virus cycle usually organism comprised…
A: NOTE:- As you have posted multiple parts under one question, we will solve the first three parts for…
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: 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…
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- Think about the cells that viruses infect. Pick out the correct statements below. A. The host cell has some particular thing - be it machinery, chemistry or whatever - that the virus MUST have in order to successfully reproduce. B. Viruse generally don't care what cells they infect. C. Viruses can only replicate in particular hosts and tissues. D. The host range or tissue specficity means the specific type of cells the virus infects. Example - rabies infects neural cells.which of the following is NOT a mechanism by which viruses can damage the human body (ie- harm us)? causes our viral infections may lead to the release of too much cytokines/chemical signals O may cause our defenses/immune system to over-react Othey produce and release toxins O may cause cancer Otheir replication (life cycle) destroys our cellsWhile H5N2 is of great concern economically, it is not considered animminent threat to human health. This is mostly because ___________ .a. if birds are properly cooked the virus cannot spreadb. the virus moves poorly from bird to bird c. the virus cause only mild disease in most birdsd. the virus moves poorly from bird to human and from human tohuman
- e) Bats have been implicated as the source of many viruses against which humans have a difficult time mounting an effective immune response. Interestingly, flight plays an important role. i) Describe and explain i) the role that flight plays in creating these kinds of viruses, ii) how the viruses cross over into humans, and iii) why our immune response has a more difficult time mounting an effective response against thema cytokint storm is an overproduction of immune cells and their activating compounds- cytokines can be caused by? a. flu viruses and covid-19 b. covid-19 only c. flu viruses only d. all choices are correct e. a coontagious bacterial disease onlyViruses are not considered living because they ___________ . a. are not made of cells b. lack cell nuclei c. do not contain DNA or RNA d. cannot reproduce
- The epidemic that infected Europe, North Africa, and theMiddle East and killed tens of millions of people was known asthe Black Death. The disease was caused by:(a) Smallpox (d) Anthrax(b) Bubonic plague (e) Swine flu(c) Breathing of foul airHIV attacks only specifi c types of human cells, such as certain white blood cells and nerve cells. Can you explain why a virus can enter some types of human cells but not others?It’s late summer and a new influenza virus strain has appeared in chickens across the country.It’s an H1N1 strain of Influenza A, like the Spanish flu that caused one of the deadliest pandemics in humanhistory, back in 1918. In that case too it started as an avian flu that mutated and jumped directly from birdsto humans.You are a researcher at the NIH and the President gives you 24 hours to predict the chances that this couldturn into the next “Spanish flu”. They also ask you to present a plan for a vaccine that will specifically targetthis new strain.The full sequence of the Spanish flu virus is available and is also known which mutations where key toconfer it both high infectivity and high virulence. Also the frequency of mutations of this family of viruses isknown.Samples of the new strain currently infecting chickens are also available to you.You are at the NIH laboratories in Bethesda, MD, and you have infinite resources (equipment and staff) atyour disposal.Remember: Influenza…
- Which of the following is true? A. Viruses cannot reproduce outside a host cell. B. Prions are infectious proteins. C. Viroids lack a protein coat. D. Some viruses cause cancer. E. All of the above.Which of the following statement is true? A. Scientists believe the world is due for an epidemic of influenza that could be a major killer B Most viral diseases can be effectively treated with common antibiotics such as penicillin C. Viruses are much less likely than bacteria to be used in bioterrorism. D. Viral diseases cannot spread from animals to humans. E. None of the above is trueComparing the number of infections, people catch cold so much more often than flu .Why haven’t we spent time and effort on developing vaccines to the cold virus ? a)The cold viral particle change over time, too difficult to develop a vaccine b)The cold viral remain stable over time and lose their ability to infect human over time c)The cold viral particle constantly change over time , catch a cold virus will result in vaccination for a long time d)There are too many strains of the cold virus and the symptoms are mild