**Question: What is the function of reverse transcriptase in retroviruses?**- **A.** It converts host cell RNA into viral DNA.- **B.** It uses viral RNA as a template for making more viral RNA genomes.- **C.** It translates viral RNA into proteins.- **D.** It uses viral RNA as a template for DNA synthesis, that is, it makes complementary DNA.**Explanation:**Reverse transcriptase is an enzyme used by retroviruses to synthesize complementary DNA (cDNA) from their RNA template. This process allows the viral RNA to integrate into the host's genome.Correct Answer: **D. It uses viral RNA as a template for DNA synthesis, that is, it makes complementary DNA.**

Retroviruses are positive sense single stranded RNA viruses which replicate inside the host cells.…

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

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

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Similar questions

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.
How is a fusion protein formed? a. Use CRISPR/Cas9 to remove a portion of the gene of interest, thereby creating a shorter protein b. Use site-directed mutagenesis to replace one sequence with another c. Use the yeast two hybrid technique to form a new hybrid protein d. Use recombinant DNA to ligate a cDNA in frame with another protein coding sequence
What attracts or directs the synthesis enzyme to the template in DNA Replication? a. Promoter b. Primer c. 5'-cap d. Poly-A Tail e. Start Codon
How can you design your RT-PCR experiment to control for gDNA contamination? A. Use forward and reverse primers that bind to the same exon. B. Run a control lane where only RT was performed and not PCR. C. Run a control lane where MRNA has been amplified using PCR. D. Use forward and reverse primers that span the junction of 2 separate exons.
Section two. Match horizontal gene transfer mechanism with best definition. Answers are used more than once. а. Transduction b. Transformation Conjugation c. 44. requires two live cells, where the recipient receives donor DNA 45. involves a virus 46. usually a plasmid is transferred 47. does not require a virus or another cell 48. "sex" for bacteria 49. occurs because of mistake made in chromos ome packaging by a virus 50. Frederick Griffith coined this term.
The function of reverse transcriptase is toa. copy RNA into DNA.b. copy DNA into RNA.c. translate RNA into protein.d. translate DNA into protein.
How are poly-adenosine tails added to subgenomic mRNAs of RNA viruses? Repeated uracil bases on the template cause the polymerase to slip backwards and recopy the sequence Polymerases copy a 200 base string of uracils found in some RNA viral genomes Polymerases copy a 200 base string of uracils added to the template during circularization Viral mRNAs undergo post-translational modifications, which include splicing of introns, a 5'-cap, and a 3'-poly-A tail
All of the following enzymes would be used by a bacterium to copy its genome EXCEPT O A. Helicase B. DNA polymerase C. RNA-dependent RNA polymerase D. DNA gyrase Reset Selection
96) The RT enzyme: a. The output is dsDNA. b. The enzyme works in the nucleus in case of the HIV virus. c. the template of this enzyme is double stranded RNA d. Found in the capsid of FMD virus
98) The influenza virus is a. Segmented genome with a ds RNA b. Segmented genome with a negative sense RNA and the RNA polymerase i c. Segmented genome with a positive sense RNA d. Segmented genome with anti-genomic RNA act as a template to produce t
Which of the following is true? a. Viruses have been used to introduce certain genes into humans. b. PCR can be used in tests for inherited diseases c. All the above d. DNA chips can carry sequences from over 1000 gene sequences on one chip.
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