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Q: Prions
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Q: Which statement is TRUE?
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Q: Can phages kill animals?
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- Do you thin genetically modified fish is good? What is your opinion about it?What are the 2 ways viruses can reproduce?Corona-virus disease 2019 (COVID-19) is a new disease, caused by a novel (or new) corona-virus that has not previously been seen in humans. This virus can be a product of dark biotechnology?
- A new medication has been found that can stop the spread of a disease significantly by a process that does not allow the virus to leave the infected person's body. Patients who do not take the medication have very high transmission rates. The Center for Disease Control and Prevention (CDC) randomly selected participants for a study and divided them into two groups. The first group received the medication and the second group did not. The CDC has concluded that the medication could halt the spread of the disease. Which statistical study did the CDC most likely use? a They most likely used a sample survey that asked patients who took the medication whether they came in contact with someone who had the disease. b They most likely used an observational study that observed patients, selected at random, to determine whether those patients who took the medication spread the disease to others. c They most likely used an experimental study under controlled circumstances on…"Early in the COVID-19 pandemic, some argued that comparable numbers of people caught bad strains of the influenza virus (causing the viral flu); thus, by extension, the restrictions imposed on society for COVID-19 were unduly burdensome. Based on our discussion in class, which arguments could be made to refute this argument. " "While an average of 31 million people catch the viral flu each year in the US (compared to 16 million COVID-19 cases so far), the mortality rate from the flu seems to be perhaps 8 to 24 times lower than for COVID-19." "Fewer people have caught COVID-19 than catch the viral flu in a given year, but the comparison is not entirely fair since we are not restricting social gatherings or wearing masks during viral flu seasons. A fair comparison would be what would have happened with COVID-19 infections if normal year practices were carried out. " More than twice the number of people in the US have caught COVID-19 than catch the flu virus in a…Although the virus that causes smallpox has been eradicated, there are still stocks of the virus, which are kept in labs in the US and Russia. Why may someone argue that these stocks be destroyed?
- Why do scientists worry more about new strains of viruses like influenza and coronviruses as potential causes of deadly human pandemics, but they never talk about the next big Herpesvirus strain deadly pandemic? Which of the statements below helps partially answer that? We already have effective vaccines for Herpes. Influenza and CoV have more genes, more complex gene expression, and can undergo genetic recombination or reassortment, while Herpesviruses are more limited. Only humans get Herpesviruses, while animals can get Influenza viruses and Coronaviruses. dsDNA viruses aren't very transmissible and even when they are, they're not deadly. Influenza and CoV are RNA viruses which results in having higher mutation rates -- they can more easily jump between host species. Herpesviruses are dsDNA viruses and usually very host specific. O O O O1) Evolution describes the change of the genetic makeup of __________ A)a population. B)an individual. C)a species. D)a cell 2) Which of the following would not be classified as a eukaryote? A)bacteria B)protista C)animals D) fungi E)plants 3) Which of the following is not a domain of life? A)Animalia B)Bacteria C)Archaea D)EukaryaIn the 1940s, the U.S. government was looking for a solution to a medical problem: the prevalence of sexually transmitted diseases (STDs) among soldiers. Several now-infamous government-funded studies used human subjects to research common STDs and treatments. In one such study, American researchers intentionally exposed more than 1300 human subjects in Guatemala to syphilis, gonorrhea, and chancroid to determine the ability of penicillin and other antibiotics to combat these diseases. Subjects of the study included Guatemalan soldiers, prisoners, prostitutes, and psychiatric patients—none of whom were informed that they were taking part in the study. 1) What type of Epidemiological Study does this fall under; Descriptive, Analytical, Retrospective, Observational, or Prospective. 2) Please explain why this study was ethical or unethical. 3) We discussed a similar tragic but famous study that happened in the U.S. (it took place in Alabama) in one of our lectures. What was the name and…
- which of the following is NOT a mechanism by which viruses can damage the human body (ie- harm us)? causes our viral infections may lead to the release of too much cytokines/chemical signals O may cause our defenses/immune system to over-react Othey produce and release toxins O may cause cancer Otheir replication (life cycle) destroys our cells3) It is now 2085 and the world is experiencing another pandemic viral infection. The scientist that discovers the virus, purifies out the genetic information and learns that it has a sequence that is: 26% Cytosine 21% Adenine 28% Uracil and 25% Guanine What sort of genetic information does this new virus have? DNA or RNA? Single or Double Stranded? Explain how you know!Chapter 21 retrovirus Question - Multiple Choice Part A Do all viruses that contain RNA also have reverse transcriptase? Yes, all RNA viruses are retrovirus. No, some RNA viruses use the host machinery to make protein, but, no viral DNA is ever made. Yes, the only way to make replicate an RNA virus is to reverse transcribe the RNA into DNA. No, some RNA viruses also have DNA and do not need reverse transcriptase Yes, Reverse transcriptase is an enzyme in all viruses. Submit Request Answer
