You are helping a patient who you think has CJD. They want you to explain how this happened.Which explanation below is NOT correct?O spontaneous misfolding of the normal prion with ageO possible transfer of abnormal prions on contaminated surgical instrumentsO overuse of antibioticsO possible transfer of abnormal prions from blood transfusionO possible transfer of prions through organ transplantO consumption of beef from cattle with BSEQuestion 65Below are stens in the evolution/emergenco of vCD

CJD stands for Creuzfeldt-Jacob Disease, which is a neurodegenerative disorder caused by an isoform…

ou are helping a patient who you think has CJD. They want you to explain how this happened. Vhich explanation below is NOT correct? O spontaneous misfolding of the normal prion with age O possible transfer of abnormal prions on contaminated surgical instruments overuse of antibiotics O possible transfer of abnormal prions from blood transfusion

ou are helping a patient who you think has CJD. They want you to explain how this happened. Vhich explanation below is NOT correct? O spontaneous misfolding of the normal prion with age O possible transfer of abnormal prions on contaminated surgical instruments overuse of antibiotics O possible transfer of abnormal prions from blood transfusion

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter24: Viruses And Subviral Agents

Section: Chapter Questions

Problem 10TYU: Arrange the following list into the correct sequence for part of the cycle of a retrovirus: 1. dsDNA...

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The process by which non-viral DNA is brought into a bacterial cell by a phage is referred to as Transformation OTranslation O Vaccination O Ligation O Transduction O Transposition Conjugation
What are the similarities and differences between retroviruses and retrotransposons? It has been hypothesizedthat retroviruses evolved from retrotransposons. Do youagree with this model? Justify your answer
O O O A new virus is discovered. Its RNA genome encodes several proteins, including a reverse transcriptase enzyme. What can you conclude about replication of this virus? Its replication involves a double-stranded RNA intermediate Its replication involves a DNA copy of its genome Its replication depends entirely on cellular enzymes Its replication is entirely independent of cellular enzymes 00 A deficiency in Base Excision Repair (BER) would primarily sensitize you to mutations caused by radiation, X-rays O Chemicals in smoke, and UV radiation O Unavoidable, spontaneously occurring DNA damage
Match the terms 1Genome surrounded by a protein coat 2Functional viral particle capable to infect a new host cell 3Infectious protein 4Infectious agent that needs helper virus for infection 5T4 enzyme that creates holes in the E. coli plasma membrane 6When a temperate phage stimulates their bacterial host tostart producing a toxin (e.g. cholera, shiga) 7Virus that infects bacteria 8Hand N spikes 9Virus without an envelope 10Most common and best studies virulent phage of E. coli 11Protein coat that surrounds viral genome 12:true or false : some viruses can cause cancer [ Choose ] lambda True pathogenic stimulation False Nucleocapsid lysosome Naked virus induction lysozyme Flu viruses tobacco mosaic virus lysogeny capsid Lysogenic conversion Holin Prion satellite bacteriophage (or just phage) T4 Virion Streptococcus
Which of the following is a bacterial genetic recombination mechanism that happens with the aid of bacteriophages. * O meiosis conjugation transduction binary fission O transformation tomperate phages*
During viral gene therapy (using the adenovirus system), does the new DNA that you introduce into cells get incorporated into the organisms genome? O Yes O No
The virion illustrated below is a O Bacteriophage O poxvirus O HIV retrovirus O Adenovirus
Which of the following statements about prions is FALSE? O A They are not viruses. B They replicate by integrating themselves into the nucleus of a healthy cell. OC They are resistant to degradation due to their misfolded nature. O D They contain no genetic material. O E Transmissible Spongiform Encephalopathies are diseases caused by prions.
Several negative-strand viruses carry their genomeas a set of discrete RNA segments. Examples include influ-enza virus (eight segments), Rift Valley fever virus (threesegments), Hantavirus (three segments), and Lassa virus(two segments), to name a few. Why does segmentation ofthe genome provide a strong evolutionary advantage forthese viruses?
In what environment can viruses replicate themselves? O Inside the cells of living organisms O Nutrient-rich broths. In cloud layers O Dry environments without other organisms MacBook Air F10 F9 F8 888 F7 吕0 F4 F3
There have been recurring cases of mad-cow disease in the United Kingdom since the mid-1990s. Mad-cow disease is caused by a prion, an infectious particle that consists only of protein. In 1986, the media began reporting that cows all over England were dying from a mysterious disease. Initially, there was little interest in determining whether humans could be affected. For 10 years, the British government maintained that this unusual disease could not be transmitted to humans. However, in March 1996, the government did an about-face and announced that bovine spongiform encephalopathy (BSE), commonly known as mad-cow disease, can be transmitted to humans, where it is known as variant Creutzfeldt-Jakob disease (VCJD). As in cows, this disease eats away at the nervous system, destroying the brain and essentially turning it into a spongelike structure filled with holes. Victims experience dementia; confusion; loss of speech, sight, and hearing; convulsions; coma; and finally death. Prion diseases are always fatal, and there is no treatment. Precautionary measures taken in Britain to prevent this disease in humans may have begun too late. Many of the victims contracted it over a decade earlier, when the BSE epidemic began, and the incubation period is long (VCJD has an incubation period of 10 to 40 years). A recent study concluded that 1 in 2,000 people in Great Britain carry the abnormally folded protein that causes VCJD. In spite of these numbers, the death rate from VCJD remains low. It is not clear whether this means that the incubation period for the disease is much longer than previously thought, or whether they may never develop the disease. How can a prion replicate itself without genetic material?
The process in which recipient bacterial cells acquire genes from cell-to-cell contact with other cells is called O Transposition Vaccination O Ligation Transduction O Conjugation O Transformation O Translation