69) in the first round of translation in Sheeppoxviruses the products are a. the proteins go back to the nucleus b. are composed of structural and non-structural proteins. c. this round of translation happened before the DNA genome replication d. among these products are the cellular RNA polymerase.

69) in the first round of translation in Sheeppoxviruses the products are a. the proteins go back to the nucleus b. are composed of structural and non-structural proteins. c. this round of translation happened before the DNA genome replication d. among these products are the cellular RNA polymerase.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter12: Dna: The Carrier Of Genetic Information

Section: Chapter Questions

Problem 1TYU: When Griffith injected mice with a combination of live rough-strain and heat-killed smooth-strain...

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71) For viral protein translation a. IRES is used in IBV to initiate the translation b. HA and A proteins of the H1N1 Virus are translated by free ribosome and go back to the nucleus. c. The presence of the cap in the 5 end of the RNA genome is found in MERS coronavirus. d. the viral genomic protein found in the FMD virus is important to start the translation.
91) The NDV virus a. The mesogenic ND is less virulent than lentogenic than NDV b. The antigenomic copy is the template for both making genome and making subgenus c. The RNA polymerase is only made in the first round of translation d. The Fusion protein is the virulent protein
87) For a the viral proteins a. If the viral protein is made in the RER, it will go back to the nucleus b. IF they have nuclear localization sequence they will go to the nucleus c. The nuclear localization sequence can be either simple or bipartite of conserved leucine d. If the viral protein is made by free ribosome, most likely it will go to the surface of the ot the cell.
88) For The DNA polymerase enzyme: one option is incorrect a. Can work in the nucleus only b. Can act on ssDNA virus c. Can act on gapped circular ds DNA viruses d. Can work in the cytoplasm
72) In case of RNA dependent RNA polymerase in Newcastle disease virus (NDV), is a a. Its template is Single stranded DNA b. Its template is Single stranded RNA c. Its product is Double stranded DNA d. Its product is Double stranded RNA
89) **If the UK variant and the South African variant of the SARS-CoV 2 infected the same cell a. both variants might have phenotypic mixing with a change in their genome b. There is a chance for recombination events that will not change the genomic structure of both virus c. There is a chance for mutations events that will results in a new virus containing fragments from both d. There is a chance for RNA polymerase jumping during the production of antigenomic copy leading
3b. You were able to obtain the RNA of the influenza virus. If you injected this into a susceptible host cell could this RNA alone cause a lytic infection? Please explain why or why not with proper reasoning.
8) Which of these describes the function of RNA polymerase? A. Amplifies the “message" by making multiple copies of an mRNA molecule after it has been transcribed from DNA B. Converts a protein sequence to mRNA
Section B: True / False (5 marks) 1. Primase has a DNA dependent RNA polymerase activity. 2. 7-methylguanosine cap is added to the 5' end of the DNA after replication in eukaryotes. 3. snRNA is produced in transcription. 4. Initiator tRNA enter ribosome with the help of EF-Tu. 5. At low oxygen partial pressure Po2, myoglobin has lower oxygen affinity than hemoglobin.
When Griffith injected mice with a combination of live rough-strain and heat-killed smooth-strain pneumococci, he discovered that (a) the mice were unharmed (b) the dead mice contained living rough-strain bacteria (c) the dead mice contained living smooth-strain bacteria (d) DNA had been transferred from the smooth-strain bacteria to the mice (e) DNA had been transferred from the rough-strain bacteria to the smooth-strain bacteria
1. The SARS-CoV-2 virus (causing Covid-19) has an RNA genome, which is replicated using an RNA-dependent RNA polymerase (RdRp). The structure below shows a drug that was recently developed as a treatment for infection with SARS-CoV-2 (a) Which molecule normally found in a cell does it most resemble? (You can ignore the part of the structure highlighted with a red box. This is removed by hydrolysis when the drug enters the cell). (b) Suggest a mechanism by which this molecule might inhibit infection. (c) Why is this drug unlikely to have major effects in the host? HN OH OH
Please consider figures 1 and 2 below. 5' A B 5' -I H. D. Figure 1: Replication Figure 2: Transcription a. Which letters, A to J represent DNA strands that will be synthesized continuously? b. At which letter, A to J, are ribonucleotides being added? c. Name and describe the process that occurs in prokaryotes as the synthesized mRNA hangs free of the double helix while transcription continues. d. In what direction will the replication bubble move in figure 1 as replication continues? Rleace Ibol ancwors (a) to (d)