Viruses with reverse transcriptase enzyme can make a DNA copy out of its RNA genome.  What        implications can this capability do in health hazards?

Q: How fast can a virus evolve?

A: Viral evolution is a subfield of evolutionary biology and virology that is specifically concerned…

Q: Are viruses living or dead? Discuss this question by applying your knowledge of viruses and their…

A: Introduction :- A virus is an infectious microorganism made up of a nucleic acid segment (DNA or…

Q: As a general rule, viruses are not considered to be alive based on several reasons. One such reason…

A: Viruses are small, microscopic organisms that contain either RNA or DNA as their genetic material.…

Q: The 5'-Cap on viral MRNA plays a critical role in: Maturation and stability of the MRNA…

A: The 5'-cap on viral mRNA plays a critical role in : A. Maturation and stability of the mRNA B.…

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

A: Mutation alters the nucleotide sequence of the genome of virus.

Q: RNA viruses need to regulate the switch from mRNA synthesis to genome replication. Describe three of…

A: Introduction :- RNA Viruses contains RNA as their genetic material . It can be single-stranded RNA…

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: What are the ways by which viruses overcome lack of 5’ cap in their mRNA? (cap snatching, presence…

A: A virus is a submicroscopic agent of infection that is able to replicate only when inside the living…

Q: Is a DNA polymerase generally required for an RNA virus? Why or why not?

A: No, a DNA polymerase is not generally required for an RNA virus. RNA viruses replicate their genetic…

Q: Can RNA viruses synthesize DNA or is it just DNA viruses that can synthesize DNA.

A: RNA viruses can synthesize DNA. Viruses are non-living substance but when the enter into the host…

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: RNA viruses often undergo rapid evolution. What aspects of their biology contribute to their high…

A: Viruses are small, acellular, infectious agents that can infect all kinds of living organisms. Some…

Q: What do you think is the function of viral lysozyme-like enzyme

A: Given: Need to find the fucntion of viral lysosome.

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: For an RNA virus, what is the most important consideration? how to produce its genetic material as…

A: RNA viruses need to replicate RNA. Ten this RNA molecule act as viral mRNA. It is translated…

Q: Viruses replicate by entering a cell and using the host cell's enzymes to produce more copies of…

A: 1- Volume of sphere- 4/3πr3 2- Volume of cylinder= πr2 h Diameter= 2r Here: π=3.14 r=radius of…

Q: Why do most viruses that infect bacteria have tails, whereas most viruses that infect animals and…

A: Virus are tiny disease causing particles that are even smaller than the bacteria . They possess dual…

Q: Why can viruses not replicate independently of living cells?

A: Introduction  Central Dogma: it is the key mechanism by which DNA can be transcribed into mRNA by…

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: What is the basic structure of the HIV virus? What is the function of the glycoproteins of its…

A: HIV is known as Human Immuno Deficiency Virus, the agent of AIDS which belongs to the lentivirus…

Q: RNA virus populations derive their genetic variation from what process? Transcription from the host…

A: RNA viruses have high mutation rates i.e up to a million times higher than their hosts. These high…

Q: ure 1 above shows that remdesivir “mimics” an important component of RNA replication. Which…

A: A broad-spectrum antiviral drug that is injected intravenously is called Remdesivir. This medication…

Q: RNA viruses mutate and evolve faster than other viruses. Why?

A: Viruses are infectious parasite that needs host machinery to replicate. Viruses can be either RNA 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: You are a virologist studying a newly isolated viral strain and have sequenced its genome. You find…

A: Option A is correct.

Q: Why is it essential that negative-strand viruses carry an enzymein their virions?

A: Negative-strand viruses are RNA viruses that have a negative sense genome that is single stranded…

Q: Match terms with descriptions based on the text above. You can use an answer more than once or not…

A: The terms prevalence and incidence are used to characterize the magnitude of a condition in a…

Q: When a virus infects eukaryotic cells, one fate of the cell is lysis. List and briefly describe two…

A: A virus is a small infectious agent that replicates only inside the living cells of other organisms.…

Q: Many viruses organize their genomes with the non-structural and structural genes clustered together…

A: A Virus is a small electron microscopic parasite, incapable of reproducing by its own, survives by…

Q: Which of the following components of a virus is NOT encoded by its own genome? O capsid of HIV O…

A: HIV (Human Immunodeficiency Virus) is a retrovirus that primarily infects human immune cells,…

Q: Coronaviruses have a positive-sense single stranded RNA genome. a.) What is the genome replication…

A: The positive sense single stranded RNA virus can replicate only with the help of host cells. In…

Q: Why do the two types of viruses differ if each has plus configuration single stranded RNA as its…

A: Hi, Thanks For Your Question.  Ans : RNA Viruses Have Very High Mutation Rates Because Viral RNA…

Q: Viruses may be latent for a long period of time. For example, HIV may be latent for many years,…

A: The ability of the virus to stay dormant in a cell is called viral or virus latency. This is the…

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: Some viruses such as HPV are linked to mutations causing certain types of cancer. What part of a…

A: Human Papillomavirus (HPV) is a group of viruses that infect the skin and mucous membranes of…

Q: Some viruses can undergo lysis or lysogeny even in the same host. What might be a reason for this?…

A: Lysogeny Life cycle that takes place when a bacteriophage infects certain types of bacteria

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.