What defines a virus' host range?

Q: How fast can a virus evolve?

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

Q: What are specific structures present in viruses but not cells?

A: Virus is an non - cellular structure which reproduce inside the host cell whereas virus is dead…

Q: Describe some ways that animal viruses penetrate the host cell. What is uncoating?

A: Viruses are parasitic on other organisms. They are non-cellular organisms with RNA (ribonucleic…

Q: How is the replication of the viral genome of retroviruses unique amoung viruses?

A: Retroviruses belong to the virus family Retroviridae.

Q: What are the similarities and differences among viral genomes?

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

Q: What are the Multiplication Cycles in Animal Viruses?

A: A virus should use cell processes to duplicate. The infectious agent replication cycle will turn out…

Q: What are some other human diseases caused by viruses?

A: Disease are any change from normal state of the body which causes discomfort or disability in the…

Q: How big can a virus get?

A: Viruses are infectious agents that replicate insides the cell of living beings. These infect all…

Q: Name the animal viral diseases.

A: The disease is a condition or illness or sickness of the living animal or plant body or of one of…

Q: Explain what a virus is and how it is structured.

A: Pathogens are referred to as microorganisms that cannot easily be visualized by the naked eyes…

Q: Explain the six stages of a typical animal virus reproductivecycle.

A: The virus is an infectious agent and it replicates inside the living cells. It can infect all kinds…

Q: Identify the major structural features of viruses.

A: Viruses are submicroscopic infectious agents that replicate only when they are present inside a host…

Q: Difference between adenovirus and retrovirus?

A: Any group of common DNA viruses that infects the adenoid tissues are referred to as the…

Q: What criteria would you use to classify a virus?

A: The virus can be defined as the type of microorganisms which consists of the genetic material and…

Q: Describe the two ways that a virus may infect a cell.

A: Viruses are minute particles that are made up of only their genetic material which may be DNA or RNA…

Q: How do viruses use host cell?

A: Viruses are infectious organisms that are neither considered living or nonliving due to the fact…

Q: How do the genomes of the measles virus and the Germanmeasles virus differ?

A: Viruses are minute particles that are made up of only their genetic material which may be DNA or RNA…

Q: Give a brief account of viruses with respect to their structure and nature ofgenetic material. Also…

A: Genetic material of an organism refers to the DNA molecule present in the nucleus of its cell. DNA…

Q: Identify the Two principal means by which animal viruses penetrate?

A: Animal viruses, like most viruses, are small packets of protein and nucleic acid. They have a…

Q: Give three examples of host cell proteins that are used by viruses, and in each case describe which…

A: Introduction  A virus is an infectious agent which replicates inside the host cells. Virus can…

Q: How does attachment contribute to virus–host specificity?

A: Viruses are intracellular, obligate parasites that contain either deoxyribonucleic acid (DNA) or…

Q: Describe three ways in which animal viruses enter into a host cell.

A: Many different kinds of viruses are present which infect the organism. Some cause illness and some…

Q: What is the shape and size of viruses?

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

Q: How does a virus infect a cell?

A: Viruses are obligate, intracellular parasites. A virus must first recognize and attach to a specific…

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: What types of genomes do viruses have?

A: Step 1 Introduction Viruses are non-cellular, simple, obligate intracellular parasite consisting of…

Q: What are dissemination and replication of single and double standard DNA and RNA virus?

A: Viruses possess four different types of genomes: double stranded DNA, single stranded DNA, double…

Q: Identify three characteristics used to classify viruses.

A:

Q: Describe the unique characteristics of viruses.

A: The cells can be classified as prokaryotic cells and eukaryotic cells. The prokaryotic cells are…

Q: What accounts for the symptoms of viral diseases?

A: Viruses are very small obligate intracellular parasites possessing a genome of either DNA or RNA.…

Q: What is meant by a viral titer?

A: Microbe or microorganism is a microscopic organism. It exists as multicellular, unicellular, or cell…

Q: What features vary among different types of viruses?

A: Viruses are grouped into families that include about 3,600 species where 21 genera of viruses 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.