Rhinovirus and the flaviviruses have a _________ RNA genome, which ___________________ bind in order for translation to occur. As with most viruses with such genomes, they produce a ________________ (type of peptide), which is cleaved in order to produce the individual viral proteins
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Rhinovirus and the flaviviruses have a _________ RNA genome, which ___________________ bind in order for translation to occur. As with most viruses with such genomes, they produce a ________________ (type of peptide), which is cleaved in order to produce the individual viral proteins
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- Arrange the following list into the correct sequence for part of the cycle of a retrovirus: 1. dsDNA integrated into host DNA 2.viral proteins synthesized on host ribosomes 3. viral DNA uses host enzymes to transcribe viral RNA 4. reverse transcriptase catalyzes synthesis of ssDNA 5. synthesis of second DNA strand (a) 5, 2, 1, 3, 4 (b) 5, 2, 3, 4, 1 (c) 4, 5, 1, 3, 2 (d) 4, 1, 2, 3, 5 (e) 2, 1, 3, 4, 5Figure 17.5 Which of the following statements about virus structure is true? a. All viruses are encased in a viral membrane. b. The capsomere is made up of small protein subunits called capsids. c. DNA is the genetic material in all viruses. d. Glycoproteins help the virus attach to the host cell.Some viral genomes, composed of single-stranded RNA, act as mRNA. What advantage might these viruses have over other kinds of viruses?
- A viral particle adsorbs onto a host cell membrane. It uncoats and releases its single-stranded nonsegmented nucleic acid into the cytoplasm where it is immed dependent RNA polymerase, into mRNA. It is then translated into viral structural proteins and enzymes. Which of the following virus families is most likely repre A) Herpesviridae B) Paramyxoviridae C) Parvoviridae D) Reovirius E) RetroviridaeViruses are made up of the same biomolecules as cellular organisms (DNA, RNA, proteins, lipids, etc.), which are synthesized through enzymatic dehydration reactions from building blocks and disassembled by enzymatic hydrolysis. They infect cells and replicate themselves using resources from the host cells. Scientists discovered a previously unknown strain of virus in the tropical Pacific Ocean and it can infect higher-order eukaryotes. Initial analysis revealed that the virus is mainly composed of nucleic acids, proteins, and lipids. Chemical analysis after complete hydrolysis revealed the following building blocks (by weight): Chemical components Nucleosides Amino acids Lipids, phosphates, and carbohydrates Percentage by weight 20 30 50 Analysis of percentages of nucleosides yielded the following results (by molar ratio): Nucleosides A G T C U Percentage by mole 19 29 19 29 4 Which of the following events mostly involves hydrolysis reaction after the virus infects…Class V viruses carry their own polymerases within their viral particles: why is this necessary?
- How is a provirus related to disease symptoms? A-the provirus continually lyses cells, causing disease symptoms B-the provirus periodically shifts to a lytic cycle, causing disease symptoms C-the provirus can produce endospores during unfavorable times D-the provirus secretes powerful toxins that make the host illPlease match the definition. 1. Layers that surround the virus, giving it an exact shape that will interlock with the host cell. 2. Process where a virus inserts its DNA into and replicates with the host cell's genetic material (does not destroy cell). 3. Non-living particles that reproduce inside a living cell. 4. The genetic material (DNA or RNA) inside a virus. 5. Process by which a virus enters a host cell, uses its raw materials and energy to create new viruses, which then burst from the host cell (destroying it) and spread. The answer choices are is on the picture.discuss the similarities and differences between animal and bacterial virus multiplication. (Words/concepts to include in your answer: attachment, adsorption, penetration, uncoating, synthesis, assembly, persistence, lysogeny, latency, release)
- Generally, the DNA viruses have larger genomes than the RNA viruses. How would size be a factor in the manner in which they use the resources of their host cells?Compare how retroviruses solve the problem of replicating an RNA genome in a eukaryotic host with how other types of RNA viruses solve this same problem.How does a retrovirus prepare its genetic material for incorporation into the host cell genome? a. Host enzymes incorporate viral RNA directly into the genome. b. Host enzymes covert viral RNA to double-stranded viral DNA. c. Viral reverse transcriptase uses viral RNA to make double-stranded viral RNA. d. Viral reverse transcriptase uses viral RNA to make double-stranded viral DNA. e. Viral reverse transcriptase uses viral single-stranded DNA to make double-stranded viral DNA.
