What is the connection between non-lytic viruses and cancer? Give an example
Non lytic viruses can cause cancers like the HPV even though they are not killing the host cells by lysis. In mammalian cells there are plenty of examples where either an RNA virus ( like the RNA tumor viruses , also called retro viruses ) where the viral genome integrated into the host genome , but can also produce infective viral particles. These viruses have external coats that include both proteins and lipid bilayer membranes ( the virus pinch off , or bud , from the host cells surface )
Many DNA viruses also integrate a copy of their genome into the host cells genomes following infection (eg. Epstein-Barr Virus(it can cause mononucleosis) and members of the Herpes simplex virus family that infects neurons and cause chicken pox or genital herpes . Once you infected with these DNA viruses your body is never rid of them,rather your immune system and cellular defence mechanism fight the infection such that the titre of the infectious viruses drops to nill
What is the connection between non-lytic viruses and cancer? Give an example
3. Discuss the concept of viruses and cancer. Include the concept of certain viruses associated with certain cancers and give 3 examples with proper references and citation. Example 1 Example 2 Example 3 References
Are they organisms; that is, are they alive? What role did viruses play in the evolution of life? What are their distinctive biological characteristics? How can particles so small, simple, and seemingly insignificant be causing disease and death? What is the connection between viruses and cancer?
Give an example of a mutagen carcinogen and a non mutagen carcinogen. Briefly compare and contrast between them(can be bullet points). What are the means of exposure of each chemical and the type of cancer each causes (can be bullet points)?
Distinguish between Controllable and Non Controllable cost. Give an example.
What is the difference between an enveloped vs. non-enveloped virus? Give one example of each. In an enveloped virus, where does the envelope come from?
Viruses- Bacteriology -Describe the characteristics of viruses. -Explain receptors for bacterial viruses (bacteriophage). -How do bacteria prevent the invasion of foreign nucleic acids? -What is reverse transcriptase and which viruses use it? -What type of nucleic acids is in many important human disease-causing viruses? -List the possible consequences of viral infection of an animal cell? -Differentiate between animal and bacterial viruses. -Describe both lytic and lysogenic cycles. -Explain the potential advantages of lysogeny versus lysis for a temperate virus
Explain the differences between current and non-current assets and give an example of each.
“Enveloped viruses seem to display a greater sensitivity to heat than non-enveloped viruses, but this is not a general rule.” Give one possible explanation as to why enveloped viruses might be more sensitive to heat.
a) Explain the connection between marginal , slope, and derivative. b) Give the conditions for competitive and perfectly competitive markets c) What is an example of how you use a "model" in everyday life?
10. Which is true about the relationship between viruses and cancers? A. Viruses are no longer thought to affect cancer risk. B. All human cancers involve viruses. C. All viruses can cause cancer D. Some viruses significantly raise cancer risk. 11. Which is the best description of viral latency? A. T B. Damage to the host gradually and continuously accumulates. C. A person with a latent infection will not have antibodies to the virus. D. It is usually lethal to...