1. The passage implies which of the following about future disease eradication programs?
A. Intergovernmental organizations should not be too confident about the long-term effectiveness of any technology in their disease eradication programs. ~ Correct, Earlier the Intergovernmental organizations was confident that use of newly developed medicines such as chloroquine and powerful new insecticides like DDT will help to eliminate Malaria. But, later it was found that "DDT has lasting and widespread consequences for the environment and the health of local populations" and "Plasmodium parasite responsible for Malaria was developing resistance to quinine and other anti-malarial medicines as quickly as scientists were developing new medicines".
B. All disease eradication programs run by intergovernmental bodies are doomed to failure. ~ Author mentioned that previous programme related to smallpox was successful in eliminating the disease. So, we are not certain about the success of the future program. Refer to the line "Indeed, the malaria effort was simultaneous with the global fight against smallpox, which would in fact eliminate this dreaded disease little more than two decades later."
C. Disease eradication programs can only be successful against relatively mild diseases, such as smallpox.~ Author although agree that the program for eliminating smallpox was successful. But based on this information we cannot conclude that the disease eradications program were only sucessful against relatively mild disease.
Another point in the passage it is not mentioned that smallpox is a relatively mild disease, on the contrary author mentions that smallpox is a dreaded disease.
Refer to the line "Indeed, the malaria effort was simultaneous with the global fight against smallpox, which would in fact eliminate this dreaded disease little more than two decades later."
D. Eradication programs focusing on diseases carried by mosquitoes cannot be successful. ~ Till date the program is not successful, but we cannot confirm that the other program focussing on disease caused by malaria cannot be successful. Also, Two evidences are mentioned in the passage where the program was found successful. Refer to the line "Efforts to eradicate the mosquito showed some success in wealthy countries with temperate climates, such as Italy or Singapore."
E. The greatest chance for success of disease eradication programs lies in the field of biotechnology, which will open up entirely new avenues for fighting disease. ~ It has been mentioned that the plasmodium Parasite is developing resistance to the new medicines, but it is not mentioned that using biotechnology we will have greatest chance to fight for new disease. It is the new information which cannot be concluded from the passage.
2. The relationship of the Anopheles mosquito, the Plasmodium parasite, and the disease malaria is most similar to which of the following?
Anopheles Mosquito (AP) with Plasmodium Parasite (PP) in its gut bites human and transfer Plasmodium. Again the AP with PP in its gut bites and transfer PP to humans and the cycle continues.
Host- Anopheles Mosquito
Carrier- Plasmodium Parasite
Transfer- Biting human
A. Norwegian rats carry fleas that hold in their guts the Yersinia pestis bacteria, which can cause the bubonic plague in infected humans. Incorrect, Here we have Host 1- Fleas which are inside, Host 2- Norwegian rats. Rats are transfering the host which is carrying the bacteria.
B. British army officers give Native Americans blankets infected with the Variola virus, which causes smallpox. Incorrect, here exchange is from human to human.
C. Tsetse flies that bite humans can transfer the Trypanosoma parasite, which in humans causes African trypanosomiasis, also known as sleeping sickness. Incorrect the Trypanosoma parasite should be in the gut of Testse flies for correlation. We don't know where parasite is hosting.
D. Parasitic Schistosoma flatworms breed in snails, which then excrete the flatworms into waterways where the flatworms can embed themselves in humans and cause schistosomiasis, also known as bilharzia or elephantiasis. Correct, the Flatworms transfer the disease in human and they breed in Snails.
Similar to the Anopheles Mosquito (AP) with Plasmodium Parasite (PP) in its gut bites human and transfer Plasmodium.
E. Cows consuming the remains of other cows with mutated prion proteins can develop bovine spongiform encephalopathy, also known as mad cow disease, which can be transferred to humans who eat tainted products from these cows. Incorrect, there is no carrier present inside the cows also humans are not getting disease from eating any specific food.
3. Which of the following would be most representative of the “bold international programs” described in the second paragraph?
Refer to the line "Idealists believed that the new model of intergovernmental bodies typified by the United Nations would usher in a new age of international cooperation, and that the striking technological advances of the age would solve all human ills."
A. The Soviet Union demands that its allied nations in Eastern Europe employ a new and advanced type of nuclear reactor in new power generating facilities.
Soviet union demands and not cooperate.
B. Canada experiences a bumper wheat crop because of advances in agronomy, and it distributes its excess wheat to three nations in subSaharan Africa that are suffering from drought. Incorrect, correct way is to transfer the technological advances in agronomy to such states so that in future they become self- sufficient.
C. A consortium of nations in South Asia cooperates in the construction of a new type of desalinization plant that will supply water to all member nations. ~ Correct- Cooperation by the nations will solve the problem for each nations using technological advancement.
D. Teams of French and Italian scientists sponsored by their respective governments race to be the first to develop an effective vaccine against cholera. Incorrect, no cooperation.
E. Eight national chess organizations from different nations agree to join together into an international chess organization that will work for the standardization and promotion of the game. ~ Incorrect, Chess is not related to any human ills.
4. Which of the following would most likely describe the reaction of the author of the passage to a call for a new international malaria eradication program?
Refer to the line-> By 1978 the evidence was clear—the malaria eradication effort had failed.The WHO shifted its goal from eradicating malaria to controlling it. These efforts at control have seen only limited success.
Author agrees that the program has failed and does not mention that he is supporting the program. Eliminate A and E. Author is not amused by the program. He mentions that even when the program pivoted from eradicating to controlling Malaria. The pivot was not successful. He is not angry and harsh on the program. So between B and D. D is a better choice.
A. Enthusiastic support
B. Angry contempt
C. Amused ambivalence
D. Reluctant condemnation
E. Pessimistic support
5. The passage implies that which of the following would be most important to a successful eradication campaign against malaria?
A. A new anti-malarial medicine ~ Incorrect, the plasmodium parasite is developing resistance to the new medicines as quickly as scientists are developing them.
B. An effective vaccine against malaria ~ Correct, refer to the line "No reliable vaccine has ever been developed against malaria, and consequently no area can ever be declared completely free of the disease"
C. A stronger variant of DDT ~ DDT already has environmental and health concerns.
D. Anopheles mosquitoes engineered to reject the Plasmodium parasite ~The plasmodium parasite can develop new host and transfer to human through this.
E. Greater international cooperation ~ Author does not mention that due to lack of cooperation the malaria cannot be eradicated.