Retrovirus, adenovirus, herpes virus and adenoassociated virus vectors have been developed for use in human gene therapy. Lütfen birini seçin: O a. False O b. True
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- Using retroviral vectors for gene therapy might increase the patient's risk of developing cancer because they might: a. introduce proteins from the virusb. integrate recombinant DNA into the genome in ways that misregulate the expression of genes at or near the site of integrationc. not express the genes that were introduced into a patient's cellsd. not integrate their recombinant DNA into the patient's genomeThe major issue associated with the use of live, attenuated virus for vaccines is _____. A) reversion to virulent strain that causes disease B) ineffectiveness because it’s not “the real thing” C) contamination with other viruses or bacteria D) the capacity to induce shock in recipientsWhat'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
- (-)ss RNA viruses carry RNA polymerase within the particle. A. true B. falseA new test kit is developed for the direction of coronavirus. When it is tested in a group of 115 patients with Corona virus, 81 have a positive test. In a group of 220 individuals without Corona virus, 10 have a positive test. a. What is the sensitivity and specificity of the test kit? b. Comment on the above results.The major difference between retrotransposons and retroviruses isa. retrotransposons encode reverse transcriptase.b. retroviruses move from one site in the genome toanother.c. retroviruses encode the env gene, which allows themto move from one cell to another.d. None of the above are correct.
- A virus is a small collection of genetic code, either DNA or RNA surrounded by a protein coat. a virus cannot replicate alone and needs a host. With this, covid 19 is not likely to respond with which of the ff management: a. antibiotics b. antiviral c. vaccine d. supportive management (fluids, rest)The virus that causes COVID 19 has characteristics of both the common cold and the virus that causes SARS and MERS because it_______________ a.is not easily spread and can demage the lungs b.is easily spread and can damage the lungs c.is easily spread and causes mild symptomsWhile H5N2 is of great concern economically, it is not considered animminent threat to human health. This is mostly because ___________ .a. if birds are properly cooked the virus cannot spreadb. the virus moves poorly from bird to bird c. the virus cause only mild disease in most birdsd. the virus moves poorly from bird to human and from human tohuman
- In our pandemic world, COVID testing has become a very common thing (unfortunately necessary). When receiving a test to detect the COVID virus, a person may or may not have COVID, and the test result could come back either positive or negative. (a) Explain what specificity means in the context of a COVID test. (b) Explain what sensitivity means in the context of a COVID test.Which statements are accurate regarding properties of viruses? Select allthat apply. a. Viruses are cell structures that are compact and economical.b. Viruses represent active molecules outside the host cell.c. The basic structure of a virus is composed simply of a protein shell.d. Viruses do not contain enzymes for most metabolic processes.e. Viruses contain either DNA or RNA.A vaccine that employs a toxoid is based upon a ______. A) antibody B) attenuated virus C) histamine D) inactivated form of a bacterial exotoxin