NAME SU 18 810 202 g statemonts supports the argument that virases are soaliving
ID: 277856 • Letter: N
Question
NAME SU 18 810 202 g statemonts supports the argument that virases are soalivingt A) They do not canry out metabolie grocesses B) Their DNA does not encode roteins.C) They have RNA rather than DNA. D) They do net evalve 2. The bost range of a vinas is determised by A) the enzymes carried by the virus C) the peoscins in he hosts cytoplasm D) the protcins on its surface and that of the bost 3. In mamy ways, the regulation of the genes of a particuler group of viruses will be sinilar to the regulation of the hos goe Therefore, which of the following regulaion mechanisms would you expect of the genes of a bacterisphage? A) regulation via acetylation of histones C) control of tmore than one gene in an operon B) pesitive control mechanisns rather then scgative D) reliance on transcription activalors 4. Which of the following charackeristics is tyrical of the lytic eycle of a bacteripbage? A) Viral DNA is incorporated inte he host genome B) The vinl gmne replicates witon destroying ho D) The vires-host relationship usually lasts for geserutions C) A large number of phages are relensed at a time 5. Which of the following characteristics correctly describes retrovinuses? A) Thry are made up of only a single peotein B) They can oly reproduce by infecting bacteria D) They have a single-stranded RNA that acts as a template for DNA synthesis C)They have a single traned DNAthat acts a“ template fe DNArnhe". 6 What is the function of reverse transcriptase in retrowinases B) It coeverts host cell RNA into viral DNA. A) It uses viral RNA as a template for DNA syntheis D) It uses viral RNA as a template for making complemsentary RNA strands 7. If a viral host cell has a mutation that interferes with the addition of carbohy drates to proleins in drates to proteins in the Golgi pparatus, following processes coald kkely sesuk? A) The viral envel ope proteins would not have glyooproteins added to them and might not arrive at the bost plasma menmbrane The viral capsid proteins would not have glycoproteins added to dhom and might not arrive al the host plasma mewieae C) The viral oore proteins would not have glycoproteins added to them and might not urrive at the host plasma membranc D) The virus would be unable to reproduce within the host cell 8. HIV is inactivated in the laboratory after a few minutes of sitting at room temperatare, but the tu viras is stall active aftver sitting To several hours. What are the practical consequences of these findings? A) HIV can be transmitted more easily from person to person than the fhu virus. B) The flu virus can be transmited more easily froes person to person than HIV C) This property of HIV makes it more likely to be a pandemic than the flu virus D) Disinfecting surfaces is more important to reduce the spread of HIV than the fa. 9. Which of the following statements correctly describes vaccines and how they help prevent viral infection A) Vaccines are active versions of a virus that stimslate an immune reaction in a person. B) Vaccines are inactive versions of a virus that stimulate an immune reaction in a person. C) Vaccines are infectious proteins that stimulate an immune reaction in a person ) They can be controlled with antibiotics C) They have little effect on plant growth. D) Vaccines are infectious enzymes that stimulate an immune reaction in a person g statements is correct reganding viral infections in plants? correct re 10. Which of the following B) They can spread within a plant via plasmodesmata I1. The difference between vertical and borizontal transmission of plant viruses is that vertical transmission is A) transmission of a vinus from a parent plant to its progeny, and horizontal transmission is one plant spreading the virus to anoth D) They are not sprcad by animals plant B) the spread of viruses from upper leaves to lower leaves of the plant, and horizontal transmission is the spread of a virus amou leaves at the same general level C) the sprcad of viruses from trees and tllplants to bushes and other smaller plants, and horizontal transmission is the spread D) the transfer of DNA from a plant of one species to a plant of a different species, and horizontal transmission is the spread viruses among plants of similar size among plants of the same species B) tiny circular molecules of RNA that can infect 2 What are prions? A) mobile segments of DNA C) viral DNA that attaches itself to the host genome and causes diseaseExplanation / Answer
Ans-1 the correct option is (A) i.e. they do not carry out metabolic processes.
Because they replicate and do important thing in host body.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.