Although a virus is very virulent now, it will eventually evolve to become much less virulent. Otherwise, a virulent virus will result in its own extinction by killing off all its hosts.  True  False

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: What happens when a person who is infected with a herpes virus experiences a cold sore or genital…

A: Introduction  Herpesviridae is a large group of DNA virus which has around 135 types found in…

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: The process of creating conditions in which viruses evolve reduced virulence is attenuation.…

A: Virulence is the harm caused by pathogen infection, particularly in terms of host morbidity and…

Q: An individual virus binds to the surface of a cell, hijacks the cellular machinery inside, and…

A: Viruses are also known parasites. it's been famed for many years that after a virulent disease gets…

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: All viruses can be grown in cell cultures. True False All viral infections can cause CPE. True False

A: Viruses are an obligate intracellular parasites that replicate inside the host cells.

Q: Which of the following is an example of viral species? a. Flavivirus O b. None of the choices human…

A: Introduction :    Viral species : " a monophyletic group of viruses whose properties can be…

Q: Why do viruses more often evolve to greater transmission at the cost of virulence? From an…

A: consider an extraordinary environmental test looked by numerous microbes: suitable natural…

Q: A new virus has been determined to triple its population size every 5 hours. The virus is introduced…

A: The novel virus replicates to increase its number by a factor of 3 after every 5 hours. Two types of…

Q: HIV is a virus that infects human beings, which of the following is not a characteristic of this…

A: HIV can result in AIDS if remains untreated for a long time as the virus attacks the immune system…

Q: Snow leopards are solitary animals. An individual leopard will maintain a huge territory. They meet…

A: The small, minute and microscopic organisms are called microorganisms. The main groups of…

Q: What happens to individual Vaccinia viral particles that do not possess the genes necessary to…

A: As we know that viruses are simple, noncellular entities consist of either DNA or RNA enclosed in a…

Q: Why do scientists worry more about new strains of viruses like influenza and coronviruses as…

A: Answer: Influenza and CoV are RNA viruses which results in having higher mutation rates -- they can…

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: Even though viruses are known to take over the host cell's metabolism and use the host enzymes for…

A: Viruses show genomic flexibility and almost all RNA viruses are able to change their host mRNA into…

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

A: The impact of viruses and viral infections on human history is described by the social history of…

Q: What would happen to a virus that found its way to an environment filled only with cells that were…

A: Virus  Viruses are the sub microscopic infectious organisms.

Q: Why is conservation biology relevant to human coronavirus diseases? Because habitat destruction…

A: Conservation biology involves the conservation of natural fauna and flora from human advances or…

Q: Which of the following hypothetical viruses could NOT replicate in a host cell? It assumes that…

A: The correct answer would be option A i.e., the virus has ssDNA genome and replicates in the…

Q: Imagine you are a virus flying around Brooklyn and you are looking to infect people sitting at the…

A: I am a free-flying virus finding my target outside of a restaurant in Brooklyn. First, let me…

Q: Which of the following statements supports the thesis that viruses are nonliving? They do not carry…

A: Virus are very tiny entities , even smaller than bacteria , microscopic structure , without any cell…

Q: One human disease in the list below is caused by a virus that transcribes its genome into the host…

A: Viral illnesses are incredibly broad diseases brought about by infections, a kind of microorganism.…

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: 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: The SARS-COV-2 is a virus, which does not even have reproductive organs but it spread so fast among…

A: Viruses are pathogenic agents that cause a variety of diseases. Viruses are classified into two…

Q: Some people feel that viruses are living organisms. Give an explanation as to why they cannot be…

A: Microorganisms are those organisms that cannot be seen through the naked eye. These organisms are…

Q: The hereditary material for retroviruses is __________. The HIV virus, like other retroviruses…

A: The term "hereditary" means something that is passed on from parent to offspring. The hereditary…

Q: Emerging viruses that suddenly become apparent in causing widespread disease are actually caused by…

A: A disease is a state of unhealthiness of the physical body, mind and social interaction. A disease…

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: Which one of these is FALSE about viruses? All viruses need a living host to replicate The same…

A: Introduction  A piece of nucleic acid, encased in a protein coat, makes up a virus, an infectious…

Q: Which of the following is the most probable fate of a newly emerging virus that causes high…

A: The virus emerged as a new strain through mutation of the existing viruses. It can skip from one…

Q: Why can we use drugs for HIV, unlike many other viral infections?

A: Any infectious agent or microorganism (Virus, bacterium, protozoa, ETC) that can cause disease is a…

Q: A virus needs a ______ cell in order to reproduce. A. Large B. Host C. Weak D. Dead

A: Viruses are microorganisms who possess DNA or RNA as their genetic material. They gain entry to…

Q: Which of the following are NOT enabling factors for the emergence of a new viral disease? a lack of…

A: Introduction - When harmful viruses infiltrate an organism's body, infectious virus particles…

Q: The trade-off hypothesis describes the idea that both a “too much” virus and a “not enough” virus…

A: There is a hypothesis that "too much" virus and a "not enough" virus will not spread very much. But…

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: Because viruses lack some of the traits seen in all living things, many scientists do not believe…

A: Viruses are infectious agents and the name is derived from a Latin word, which means poison or a…

Q: Each year, hundreds of millions of people get sick from diseases like Zika, Dengue Fever, and Yellow…

A: Mosquitoes are vectors, which mean they act as agents to carry bacteria, parasites, and viruses. The…

Q: Which of the following statement is true? A. Scientists believe the world is due for an epidemic of…

A: AN EPIDEMIC may be a disease that affects an outsized number of individuals within a community,…

Q: You are arguing with one of your classmates. They say viruses are living, you say they are not. What…

A:

Q: What is different between viruses and bacteria?   a. Viruses are typically smaller than…

A: A virus is a sub-microscopic infectious agent, while bacteria are microscopic, single-celled…

Q: Which statement below is FALSE with regard to why viruses are not considered cell O viruses do not…

A: First statement: Viruses don't grow and divide but can be assembled from viral components within the…

Q: or a virus to attach to a cell, the ____________ on the outside of the virus must attach to a…

A: A virus is a malicious programme that copies itself to another programme in order to perpetuate…

Q: In recent history we have been fairly successful in eradicating or substantially diminishing the…

A: Eradication refers to the global incidence of infection caused by a certain agent permanently…

Q: The life cycle of which of these viruses depends on reverse transcriptase? A)HPV, a DNA virus…

A: To find  The life cycle of which of these viruses depends on reverse transcriptase

Q: Which of the following statements concerning viruses and human health false? O in many diseases…

A: Antibiotics are medicines used to prevent and treat bacterial infections. Antibiotic resistance…

Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.