The genome of which of the following types of animal virus can act directly as mRNA and be utilized by ribosomes without prior processing? O 1) retroviruses 2) SSDNA viruses 3) -SSRNA viruses 4) +SSRNA viruses 5) dsDNA viruses

Q: In electron micrographs of HSV infection, it can be seen that the intact virus initially reacts with…

A: The herpes simplex virus (HSV) is an infection that causes herpes in various parts of the body that…

Q: List a few of the important disease-causing viruses

A: Viruses are small infectious agents which are considered to be non living as they cannot live…

Q: HIV   - is a virus with RNA as the genomic material   - is a retrovirus that reverse-transcribes…

A: HIV (human immunodeficiency infection) is a retrovirus that attacks the host immune system. In the…

Q: Which of the following is a known characteristic that can lead to genetic changes in some viruses?…

A: viruses need host cell machinery to replicate themselves.

Q: How does a retrovirus prepare its genetic material for incorporation into the host cell genome?   a.…

A: Retrovirus enters the host cell through the attachment of their surface proteins. Retrovirus is an…

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: Which of the following statements concerning viruses and human health is false? a-in many diseases…

A: A virus is a little collection of genetic material that can be either DNA or RNA and is protected by…

Q: What aspect of an RNA virus makes it more likely than a DNA virus to become an emerging virus?

A: Answer- The viruses can have either DNA or RNA as a genetic material.

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: All of the following are characteristics of a virus with a promiscuous host range EXCEPT: Binding…

A: NOTE: Thanks for mentioning which answers you needed. Virus Virus is small infectious particles…

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: Rhinovirus, the most common cause of colds, do not have a lipid envelope. Compared to enveloped…

A: Viral envelope is a loose membranous covering that occurs in some animal viruses, rarely plants and…

Q: Assume you isolate a single stranded (+) RNA virus. When you examine the proteins in the virus, you…

A: RNA-dependent RNA polymerase  or RNA polymerase or replicase  is an enzyme that catalyzes the…

Q: The relative amounts of each nitrogenous base are tabulated here for four different viruses. For…

A: Viruses are microscopic agents that can replicate only inside host cells. They can infect all types…

Q: Viruses are acellular because a. they are biological entities that do not have a cellular…

A: Viruses cause a variety of diseases and lies between living and non-living boundaries. The simplest…

Q: Viruses are host-specific, meaning they can only infect specific types of host organisms. For…

A: Viruses are acellular organisms. They become active once they enter inside an organism and can…

Q: Some older vaccines used a weakened strain of the pathogenic virus in the injection in the hope that…

A: Live attenuated vaccines contain viruses that have been “weakened” so that they create a protective…

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: all of the following that are true regarding viruses? Oncogenic viruses stimulate uncontrolled host…

A: The virus is a pathogenic microorganism with nucleic acid as DNA/RNA. The nucleic acid is covered by…

Q: how are modern viruses categorized and does that categorization differs from how cellular…

A: A virus is a microorganism that is smaller than a bacterium and is incapable of growing or…

Q: Which type of virus would not need a viral enzyme for transcription? retrovirus |ds RNA ss (+) sense…

A: Microorganisms are the ones which can be seen only under a microscope. Mostly they are unicellular…

Q: Match the following: a.naked, polyhedral DNA virus b.enveloped, polyhedral DNA virus c.enveloped,…

A: Characteristics of viruses- acellular, can not replicate unless inside of a cell, metabolically…

Q: Retroviruses are dependent on reverse transcriptase, which does which of the following? Transcribes…

A: Answer- (d) creates a DNA copy of an RNA template In reverse transcription the RNA genome of the…

Q: The envelope of an enveloped virus is derived from a. The lysosome of the cell b. The cell membrane…

A: A virus in an envelope or outer covering. The infected cell, or host, produces this envelope via a…

Q: Which of the following happens to the viral nucleic acid during a lysogenic cycle cycle? a-the viral…

A: In case of lysogeny , viral DNA ingrated into host's DNS. That means integration of…

Q: Reverse transcriptase is needed to transcribe which type of viral genome into DNA? dsRNA SSDNA SSRNA…

A: Viral genome - Viral genome is defined as the genome of the virus particles. This genome can be made…

Q: Host specificity of a virus is due to 1) similarities in size between the virus and the host cell.…

A: Viruses are intracellular parasites that are obligate. A virus must bind to a "living cell" that can…

Q: Which of the following characteristics is responsible for making HAV resistant to harsh…

A: Introduction :- Hepatitis is an disorder of liver . Hepato word is used for liver and itis stands…

Q: A patient is admitted to the hospital with a viral infection and is immediately treated with…

A: A viral infection is the proliferation of a harmful virus within the body of the organism. Symptoms…

Q: Which of the following events mostly involves hydrolysis reaction after the virus infects a…

A: Question -Which of the following events mostly involves hydrolysis reaction after the virus infects…

Q: Can you pick a virus and describe the  structure and metabolism of the virus.  For the virus,…

A: Viruses are non-living entities and as such do not inherently have their own metabolism. However,…

Q: The  --------------- retrovirus contains a ______________ genome:           Select one: a. chicken…

A: Option D is correct.

Q: Rotavirus, a disease-causing member of the Reovirus family (with double-stranded RNA, but no DNA),…

A: Rotaviruses are members of Reoviridae family. They are nonenveloped particles. Rotaviruses causes…

Q: the following are the functions of reverse transcriptase in retroviruses? i) it hydrolyzes the host…

A: Retrovirus This virus uses RNA as its genomic material. This virus inserts a copy of its genome into…

Q: Select all the following statements that are TRUE regarding viruses: □ All viruses are potentially…

A: viruses- is a microscopic non cellular living organism. viruses are surrounded by protein coated…

Q: According to your own understanding, what do you think makes viruses some of the most common disease…

A: Viruses are microscopic biological agents that attack living hosts and infect their bodies by…

Q: Arrange the following list into the correct sequence for part of the cycle of a retrovirus: 1. dsDNA…

A: Retro viruses are a special kind of viruses that have reverse flow of genetic information. That is…

Q: All of the following statements correctly describes the properties of Influenza A virus EXCEPT…

A: Influenza A viruses are negative-sense RNA viruses with  single-stranded, segmented RNA viruses. The…

Q: What's the term to describe a mutant viral protein, apart from any genetic material, that can cause…

A: Introduction :- Viruses are submicroscopic infectious agents that can only reproduce inside live…

Q: Given this information, how might we be able to distinguish the SARS-CoV-2 strain from some of the…

A: The virus is a novel kind of Covid. This is a group of germs that normally causes colds. Be that as…

Q: Which of the following represents the correct stages (in order) of VIRAL replication? a-Replication,…

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

Q: Which of the following statement is true for Orthomyxoviruses but NOT Paramyxoviruses: Viral genome…

A: Orthomyxoviruses Contains 8 segments of single stranded negative RNA It has nucleocapsid, that…

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: To infect their specific host cells, viruses go through these chronological steps EXCEPT a.…

A: For infecting host cells, virus uses host cell process to replicate. During the replication of virus…

Q: Which of the following statements are correct for a class V ssRNA (-) virus? it uses its genome…

A: Class V ssRNA (negative sense) viruses are not infectious. Their sequence is complementary to mRNA.…

Q: Choose one of these Gastro-intestinal Tract viruses below and compare it to influenza list of…

A: Gastrointestinal (GI) tract inflammation known as gastroenteritis can be caused by various viruses.…

Q: Which of the following proteins would you expect a mutation in for a virus to infect a new host…

A: Virus are the obligate intracellular parasites, which are of two types RNA and DNA.

Q: Rank from biggest to smallest in terms of genome size: Eukaryotic pathogens…

A: The size genome  of eukaryotic pathogens ranges from 10 Mb to > 100000 Mb. The size genome  of…

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.