Which Class I element has likely experienced the greatest accumulation of mutations compared to its retrovirus ancestor, as its DNA sequence is the most divergent? A. LINES B. transposons C. Ac/Ds elements D. SINES E. LTR retrotransposons

Which of the following statements are correct for DNA viruses? Mark all that apply. A.The genome consists of dsRNA B. A provirus stage occurs during viral replication  C. The genome consists of two identical strands of DNA D. Replication requires reverse transcriptase Replication requires DNA polymerase E.The viral DNA must enter the nucleus for its replication F. Uncoating must occur for the virus to be replicated G.The viral genome acts as a template for production of viral proteins

105) The Baltimore classification a. There were 4 classes for DNA families b. There were 6 classes in the original classification, he missed the dsRNA viruses. c. There were 6 classes in the original classification, he missed the retrovirus with RT enzyme d. The classification was based on how viruses produce their mRNA

What is a biomarker? a. the color coding of different genes b. a protein that is uniquely produced in a diseased state c. a molecule in the genome or proteome d. a marker that is genetically inherited

Which nucleic-acid based technique will detect norovirus?   A. Fluorescent In Situ Hybridization (FISH) probes   B. PCR with primers specific for the genome of this virus   C. Terminal Restriction Fragment Length Polymorphism (T-RFLP)   D. reverse transcription PCR with specific primers   A patient's blood sample tests positive for the antigen to Vibrio cholerae. Which of the following interpretations is correct?   A. This person has cholera.   B. This person was exposed to any species of Vibrio.   C. This person was exposed to V. cholerae recently.   D. This person had cholera at some point in their lifetime.

What is the function of reverse transcriptase in retroviruses? O A. It converts host cell RNA into viral DNA. B. It uses viral RNA as a template for making more viral RNA genomes. O. It translates viral RNA into proteins. D. It uses viral RNA as a template for DNA synthesis, that is, it makes complementary DNA.

What's the term to describe a mutant viral protein, apart from any genetic material, that can cause disease?O A. VirusO B. VirionO C. ViroidO D. Prion

Which of the following enzymes helps the +sense RNA virus Poliovirus to make multiple copies of its genome?   A. RNA dependent RNA polymerase   B. RNA dependent DNA polymerase   C. Reverse transcriptase   D. DNA Polymerase I   E. DNA dependent RNA polymerase

Which type of gene therapy involves the direct administration of viruses in patients' tissues?   a. in vitro gene therapy   b. in vivo gene therapy   c. ex vitro gene therapy   d. ex vivo gene therapy

Influenza viruses use                             to replicate its genome whereas retroviruses use                            before        they can integrate their genome into the host DNA.     A. reverse transcriptase; RNA dependent RNA polymerase     B. RNA dependent RNA polymerase; reverse transcriptase     C. replicase; DNA polymerase     D. DNA polymerase, replicase