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.

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

Answered: What is the function of reverse…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter17: Bacterial And Viral Genetics

Section: Chapter Questions

Problem 9TYK

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Which statement is true of viral replication? a. In the process of apoptosis, the cell survives. b. During attachment, the virus attaches at specific sites on the cell surface. c. The viral capsid helps the host cell produce mow copies of the viral genome. d. mRNA works outside of the host cell to produce enzymes and proteins.
Why do viruses need to infect a host? A. In order to reproduce B. In order to grow from eggs to adult viruses C. In order to eat other viruses D. In order to properly socialize with other viruses
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.
What is the function of reverse transcriptase in retroviruses? converts host cell RNA into viral DNA translates viral RNA into proteins uses viral RNA as a template for DNA synthesis destroy the host cell's DNA uses viral RNA as a template for making complementary RNA strands
involved in the transfer of multiple drug resistance from one cell to another? * a.Transposition b. Conjugation with a cell with chromosomal drug resistance appears in the genome of a bacteriophage that has infected it. c. Transformation of chromosomal genes d. Conjugation with a cell with a free plasmid carrying drug resistance
In some virus,DNA is synthesised by using RNA as template.such a DNA is called?
Which process is most likely to result in a gene providing antibiotic resistance being found in a viral genome? A. Conjugation B. Binary fission C. Transduction D. Transformation
There have been recent outbreaks of dog flu in the US. Why doesn't this virus infect humans? A) The virus can replicate in cells of all species but can only egress from dog cells. B) The genetic code of the virus is the same as that in dog cells but is different from other organisms. C) The virus can only attach to dog cells. D) The virus can enter cells of all species but can only replicate in dog cells.
How do retrovirus assemble new viral progeny? a. Viral RNA is copied into DNA, then integated into the host genome and transcribed ans translated b.Viral DNA is copied into RNA, then integated into the host genome and transcribed and translated c. Retroviruses use the same machinery as prokaryotes and follow the same process to make RNA d. Retroviruses have an RNA genome instead of DNA but use all of the same enzymes as eukaryotes
what event occurs in bacteriophage multiplication that does not occur in animal virus replication?A,B,C,D, or E? a. adsorption to the host cells. b. injection of the viral nucleic acid into the host cell. c. host cell synthesis of viral enzymes and capsid proteins. d. assembly of nucleocapsids. e. replication of viral nucleic acid.
Gene therapy aims to replace faulty or disease-causing genes with healthy DNA sequences. How might you use a virus to deliver these new genes into a cell?
If a virus particle contained double-stranded B-DNA of 500,000 base pairs, A. How many complete helical turns would occur on each strand? B. How many atoms of phosphorus would be present? C. What would be the length (in Å) of the DNA before packing into the virus?

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