Design a study to test the hypothesis that human populations will evolve in response to selection relevant to HIV exposure. What do you predict will be a likely adaptation in the human population? How would the experiments in your study prove your hypothesis?
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- Which of these statements about the virulence of rabbit myxoma virus is TRUE?A. Rabbit myxoma virus needed to become less virulent so it could coexist with its rabbit hosts.B. Directional selection favored a coevolutionary escalation where resistance evolved in rabbits and less virulence evolved in the virus.C. Rabbit myxoma virus became less virulent over time because natural selection favored strains that did not immediately kill the rabbit hosts, enhancing the likelihood of spreading and infecting other rabbits.D. None of the above is a true statement.You are testing whether or not there is a difference between the weights of healthy mice, and those infected with the mouse equivalent of COVID-19. You notice that the sick mice tend to have lower weight. To see if this is statistically significant, you run a t-test. What are your null and alternative hypotheses? Choose the best answer. O a. Null: Slck mice have lower weights than healthy mice; Alternative: There is no difference between the groups O b. Null: There is no difference between the groups; Alternative: There is a difference between the groups c. Null: Sick mice have higher weights than healthy mice; Alternative: Sick mice have lower weights than healthy mice O d. There is no difference between the groups; Alternative: Sick mice have higher weights than healthy miceWhich evolutionary mechanisms (natural selection, mutation, genetic drift, or gene flow) would you need to understand to predict the success of genetically modified mosquitoes to: 1. Drive the mosquito population to extinction? 2. Replace the mosquito population with genetically modified mosquitoes that can not transmit malaria?
- Can viruses adapt by natural selection? A. No, because there isn't a genetic basis for inheritance between parent and offspring virus particles. B. No, because there isn't a way to distinguish more fit from less fit virus particles C. Yes but only via human (domestic/artificial) selection D. No they evolve by mutations. E. Yes, virus particles that are most successful successful in reproducing quickly and infecting other host cells are the best adapted.Which of the following statements accurately describes what we learned about HIV evolution? a. HIV is more deadly in Northern Europe, but more transmissible in Africa. That is why there are more individuals infected with the illness in Africa. b. HIV shares a most recently common ancestor with Simian Immunodeficiency Virus (SIV) such that SIV evolved as it host-switched from chimpanzees and gorillas into humans multiple times. c. Drug development is exceedingly difficult because there are very few drug targets for HIV and AZT (a reverse transcriptase inhibitor) alone is the single most effective treatment for HIV. d. Evolution of HIV virions within a person is quite slow such that a blood draw after 1 year of infection would reveal that every single virion would have the exact same sequence.Do you think a variation in the human genome that confers resistance to coronaviruses (SARS-COV-2) Will be selected for in the human population through future human generations? why or why not? Consider covid 19 morality rates, the reproductive ages of those who are most at risk, economic factors, etc. Pathogens evolve over time as well, what effect if any could this have on human evolution?
- The article "VWhy our flu vaccines can't keep up" mentions the concept of herd immunity. Look up what this is. Which of the following populations would be expected to exhibit herd immunity? O A population in which no one is vaccinated against the virus. O A population in which 25% of the people are vaccinated against the virus. O A population in which 50% of the people are vaccinated against the virus. O A population in which 90% of the people are vaccinated against the virus.O Bronny Before Going Against L x + Close A Did you finish your interim? if a Edcite Q 12 | 2021 SCLG8 2 x xO Classkick C Clever Portal edcite.com/apps/MOElemViewer?assignid nhaadmin_1611780315611&exid=nhaassessments 15711556315558acode C6G7L7 The data table below includes the estimated populations of woolly monkeys and long-horned grasshoppers in a small area of the Amazon. The data includes numbers from both before and after a fungus harmed the health of the long- horned grasshoppers. Use the information below to answer the question. Organisms such as dead-leaf moths and peacock katydids depend on dead leaves on the ground floor of the Amazon for camouflage. Before Fungus After Fungus Number of Woolly Monkeys Number of Long-Horned Grasshoppers Number of Woolly Monkeys Number of Long-Horned Grasshoppers 4395 35 2377 25 Analyze and interpret the data to draw a conclusion about the relationship Dead-leaf moth (left) and peacock katydid (right). between woolly monkeys and long-horned…The article "Why our flu vaccines can't keep up" mentions the concept of herd immunity. Look up what this is. Which of the following populations would be expected to exhibit herd immunity? O A population in which no one is vaccinated against the virus. O A population in which 25% of the people are vaccinated against the virus. O A population in which 50% of the people are vaccinated against the virus. O A population in which 90% of the people are vaccinated against the virus.
- Based on what you know about the mechanisms through which the effective antibiotics work, describe ways in which a population of coli resistant to these drugs could evolve. How does this relate to the theory of evolution by natural selection?In the early part of this century, tropical medicine expert Dr. Richard P. Strong obtained permission from the Governor-General of the Philippines to inoculate a number of criminals with plague bacillus. The Filipino prisoners were not asked for their consent, but they were rewarded by being provided with cigars and cigarettes (Pahl:284). Discuss the ethics of this experiment. Discuss the moral issue of informed consent. Why is it so important in medical research and experimentations? What are some of the circumstances that make it difficult to obtain? Why is there a need for human experimentation?The pesticide DDT was widely used in the 1940s as a method of insect control. In the late 1950s the first DDT-resistant mosquitoes were discovered, and eventually DDT-resistant mosquitoes were found globally. When DDT is used now, the development of DDT resistance in mosquito populations occurs in months rather than years.Which of the following best explains the observations concerning DDT resistance in mosquitoes?* nd 2 chool The proportion of DDT-resistant mosquitoes in a population remains constant due to O the metabolic costs of DDT utilization DDT is a chemical signal that delays normal reproductive cycles in many mosquito populations. Natural selection favors DDT-resistant mosquitoes that are already present in a population when DDT exposure occurs. Competition for limited resources causes mosquitoes to migrate to geographical areas that have richer supplies of DDT. A population of 1.492 finches is intróduced to a rainforest. Over the next year, the finches show a death rate of…