Why are vaccines and/or passive immunization the method of choice in thetreatment or prevention of viral infections?A. There are no known inhibitors to reverse transcriptionB. Viruses are non-living and do not have their own genetic mechanisms to reproduceby themselves hence host cells must rely on targeting the virus or their products.C. Antibodies prevent replication of viral genomeD. Antibodies prevent transcription and translation of viral genomesE. All of these

The immune system comprises cells and other biomolecules that prevent the invasion and infection of…

Answered: Why are vaccines and/or passive…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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he RNA-induced silencing complex takes dsRNA and a. Forms ssRNA that will target mRNA b. Exports it to the cytoplasm c. Chops it up into smaller dsRNA pieces d. Exports it to the nucleus
Would it be effective to use an inhibitor of RNA polymerase to block the HIV replication cycle and subsequent infection of human T cells? Yes, this would stop the transcription of viral genes and prevent HIV from being able to replicate. No, these types of inhibitors do not exist and would be impossible to make. No, this would block transcription of T cell genes, leading to the death of T cells and compromised immune systems in individuals. Yes, inhibitors of RNA polymerase are easy and relatively inexpensive to produce and make good therapeutics.
A biologist develops a new drug that seems to dramatically slow the onset of symptoms resulting from HIV infection. Close monitoring of HIV-infected cells reveals that the viral proteins are in the form of long polyproteins. What kind of drug did the biologist develop? A. It is a glycosyl transferase inhibitor. B. It is an integrase inhibitor C. It is a protease inhibitor. D. It is a CD4 inhibitor. please explain why which answer is correct and which is wrong and why
The whooping cough vaaccine and the MMR vaccine are what type of vaccines? a. conjugated b. natural c. globulin d. gamma e. whole cell / virus
Which of the following is a trait that both HPV and HIV share? A.Both have an RNA genome B.Both undergo reverse transcription C.Both integrate into the genome D.Both can cause cancer
Why are mutations in the spike protein of special interest in regard to vaccine evasion? Because spike protein mutations are associated with increased virus transmission. O Because the spike protein is the target of COVID-19 vaccines. Because the gene for the spike protein mutates faster than the other genes. O Because mutations in the spike protein always are in the receptor-binding domain (RBD). Because spike protein mutations are associated with increased disease severity.
The purpose of introducing weakened microbes into the body of an organism is to stimulate the A production of living microbes that will protect the organism from future attacks B production of antigens that will prevent infections from occurring C immune system to react and prepare the organism to fight future invasions by these microbes replication of genes that direct the synthesis of hormones that regulate the number of microbes
Based on the experience of the Philippines with the dengue vaccine, what can you conclude regarding the use of vaccines? a. Vaccines should be tested for long period of time before allowing any individual to take the vaccine.b. All aspects as on the long-term effects of vaccines, its effect on children, pregnant women, effect to reproductive system, immediate side effects and many more should be analysed first.c. Vaccines take time to be developed and studied for their effectivity and effects.d. All vaccines have side effects, only few individuals should have them.e. Vaccines that were tested for decades could be trusted for its safety but still precaution should be observed.
Based on the experience of the Philippines with the dengue vaccine, what can you conclude regarding the use of vaccines? a. Vaccines should be tested for long period of time before allowing any individual to take the vaccine. b. Vaccines take time to bedeveloped and studied for their effectivity and effects. C. All aspects as on the long term effects of vaccines, its effect on children, pregnant women, effect to reproductive system, immediate side effects and many more should be analysed first. . All vaccines have side effects, only few individuals should have them. d. Vaccines that were tested for decades could be trusted for its safety but still precaution should be observed. e.
Biosynthesis of an enveloped retrovirus requires which of the following? Mark all that apply. A. production of the viral genome from a provirus B.synthesis of the viral envelope C. production of viral enzymes reverse transcriptase, integrase, and protease D. complementary strands of viral RNA must be synthesized
X
A. DNA viruses generally cause malignancy by : inserting themselves in the host DNA, possible because their genome is similar to that of the host activating a cellular growth factor receptor, that activates the signal transduction pathway. inactivating a tumor suppressor gene, that results in uncontrolled proliferation. B. PDGF is overexpressed in certain cancers. This is an example of a mutation in the --- region a. regulatory b. coding

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