Comprehension Test Questions and Answers Practice Question and Answer
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Answer : 1. "Detritus"
Q:Directions :Read the given passage carefully and answer the following questions. Certain parts have been highlighted to help answer the questions.
Every year, around one million people die of mosquitoborne diseases according to the World Health Organization (WHO). This is why mosquitoes are considered one of the deadliest living creatures on the planet — not because they are lethal themselves, but because many of the viruses and parasites they transmit are
In the absence of an effective vaccine for dengue fever, Zika fever, chikungunya and other mosquito-borne diseases, researchers have developed genetic strategies to reduce mosquito populations. One such strategy involves the release into the wild of genetically modified (GM) mosquitoes that express a lethal gene — a strategy believed to have little impact on the overall DNA of wild populations of mosquitoes
The transfer of new genes from GM organisms to wild or domesticated non-GM populations is a key criticism of GM crops like soybean and corn. There are concerns that the introduction of GM genes into non-target species could have negative consequences for both human and environmental health.
Oxitec, a company that spun out of research at Oxford University in the early 2000s, developed and trademarked GM Friendly™ mosquitoes (also known as strain OX513A of Aedes aegypti). These male GM mosquitoes have what the company describes as a “self-limiting” gene, which means that when these so-called friendly mosquitoes’ mate, their offspring inherit the self-limiting gene which is supposed to prevent them surviving into adulthood.
In theory, when these mosquitoes are released in high numbers, a dramatic reduction in the mosquito population should follow. According to research published by Oxitec researchers in 2015, field trials involving recurring releases of Friendly™ mosquitoes demonstrated a reduction of nearly 95 per cent of target populations in Brazil. In these field trials, experiments were not performed to assess whether GM mosquitoes might persist in the wild.
A recent study from the Powell lab at Yale University has since confirmed that some of the offspring of the GM mosquitoes didn’t succumb to the self-limiting lethal gene and survived to adulthood. They were able to breed with native mosquitoes and thereby introduce some of their genes into the wild population
Meanwhile, the impact of mosquitoes carrying these new genes remains largely unknown. One significant worry is that a new breed of mosquito might emerge that is more difficult to control. These new genes could also potentially alter evolutionary pressures on viruses carried by mosquitoes, like dengue fever, in unpredictable ways. This includes potentially increasing their virulence or changing their host-insect interactions. These are hypothetical risks that have been raised by scientists, and reflect the need for further study.
What can be the potential side effect(s) of genetically modified mosquito offspring?
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617f90901cd87833baf2522aEvery year, around one million people die of mosquitoborne diseases according to the World Health Organization (WHO). This is why mosquitoes are considered one of the deadliest living creatures on the planet — not because they are lethal themselves, but because many of the viruses and parasites they transmit are
In the absence of an effective vaccine for dengue fever, Zika fever, chikungunya and other mosquito-borne diseases, researchers have developed genetic strategies to reduce mosquito populations. One such strategy involves the release into the wild of genetically modified (GM) mosquitoes that express a lethal gene — a strategy believed to have little impact on the overall DNA of wild populations of mosquitoes
The transfer of new genes from GM organisms to wild or domesticated non-GM populations is a key criticism of GM crops like soybean and corn. There are concerns that the introduction of GM genes into non-target species could have negative consequences for both human and environmental health.
Oxitec, a company that spun out of research at Oxford University in the early 2000s, developed and trademarked GM Friendly™ mosquitoes (also known as strain OX513A of Aedes aegypti). These male GM mosquitoes have what the company describes as a “self-limiting” gene, which means that when these so-called friendly mosquitoes’ mate, their offspring inherit the self-limiting gene which is supposed to prevent them surviving into adulthood.
In theory, when these mosquitoes are released in high numbers, a dramatic reduction in the mosquito population should follow. According to research published by Oxitec researchers in 2015, field trials involving recurring releases of Friendly™ mosquitoes demonstrated a reduction of nearly 95 per cent of target populations in Brazil. In these field trials, experiments were not performed to assess whether GM mosquitoes might persist in the wild.
A recent study from the Powell lab at Yale University has since confirmed that some of the offspring of the GM mosquitoes didn’t succumb to the self-limiting lethal gene and survived to adulthood. They were able to breed with native mosquitoes and thereby introduce some of their genes into the wild population
Meanwhile, the impact of mosquitoes carrying these new genes remains largely unknown. One significant worry is that a new breed of mosquito might emerge that is more difficult to control. These new genes could also potentially alter evolutionary pressures on viruses carried by mosquitoes, like dengue fever, in unpredictable ways. This includes potentially increasing their virulence or changing their host-insect interactions. These are hypothetical risks that have been raised by scientists, and reflect the need for further study.
- 1Evolution of a breed of mosquitoes which are more difficult to controlfalse
- 2Increase in the severity of diseases being currently transmitted by mosquitoes.false
- 3Change in host-insect interactions.false
- 4Loss of natural populations of mosquitoesfalse
- 5(a), (b) and (c)true
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Answer : 5. "(a), (b) and (c) "
Q:Directions: Read the following passage carefully and choose the best answer to each question out of the four alternatives.
The most logical and intelligent people seem to go berserk when talking about snakes. Recently a reputed scientist said with a wise look in his eyes that sand boas have two heads. The other day someone walked into my office and stated that in his village at least cobras mate with rat snakes. About other places he was not sure, he added modestly, but that was how it was in his village.
These stories about snakes are myths. Sand boas have only one head; vine snakes do not peck your eyes out; no snake will drink milk. But it is interesting to try and trace the origin of these untruths. The one about the sand boas two heads obviously exists because the short, stumpy tail of this snake looks remarkably like the head, an effective device to fool predators. Or take the one about vine snakes pecking at eyes. It was ‘probably started by a vine snake that had a bad aim, as snakes, when provoked, will bite the most prominent projection of the offender, which is usually the nose.
But the most interesting one is about snakes coming to the scene of killing to take revenge. It so happens that when injured or under stress, a snake exudes, a large quantity of musk. Musk is a powerful sex attractant, the snakes’ equivalent of after-shave lotion. So after a snake is killed, the ground around still has this smell and naturally a snake of the same species passing by will lick its lips and come to investigate. The killer of the snake, who is probably worried if the pooja he performed was adequate to liquidate the killing of a snake, sees the second snake and is convinced that it was not.
The Irula tribals have a good answer to the query about whether cobras have jewels in their heads; “If they did, we wouldn’t be snake catchers, we would be rajas!”
Which of the following statement is true ?
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63bd53b261d62119f1d4da59- 1The sand boas have two heads.false
- 2The sand boas have one head but no tail.false
- 3The sand boas have a head and a stumpy tail.true
- 4The sand boas have only a stumpy tail but no head.false
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Answer : 3. "The sand boas have a head and a stumpy tail. "
Q:You have eight brief passages with 10 questions following each passage. Read the passages carefully and choose the best answer to each question out of the four alternatives
A farmer accompanied by his young son was driving his ass to the market in the hope of selling the ass for a good price. On the road, they met a bevy of girls who laughed and exclaimed, “See this pair of fools ? They are trudging along the dusty road, when they can be riding !” The man thought that there was sense in what they were saying. So he mounted his son on the ass and he walked at the side. Presently, they met some of his old friends, who greeted him and said, “You’ll spoil your son, by letting him ride while you toil along on foot! Make him walk. It’ll be good for him.” The farmer followed their advice and took his son’s place on the back of the ass while the boy trudged along behind. They would not have gone far, they were seen by women and children. The farmer heard them say, “What a selfish old man ! He rides in comfort, but lets his poor little fellow walk the distance.” So he asked his son to get up behind him. Further along the road, they met some travellers. They asked the farmer whether the ass was his property or was it hired for the purpose. The farmer told them that he was taking his ass to the market to sell it. The travellers said, “Good Heavens ! With the load like this, the poor beast will look exhausted and no one would like to purchase him. Why don’t you carry him.” Immediately, the farmer got off the ass, tied its legs with the rope and slung him on a pole and carried him in between them. This was such an absurd sight that people laughed at it. They called the farmer and his son lunatics. They had then reached a bridge over a river. Frightened by the noise around, the ass struggled, kicked, broke the pole, fell into the river and died. The farmer returned home vexed and ashamed. In trying to please all, he in fact, had pleased none and he had lost the ass in the transaction.
The lesson learnt by the farmer was
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63a98064e590d4085fc5bf4f- 1do not carry an ass when it can walk.false
- 2do not overload the ass.false
- 3in trying to please all you please none.true
- 4it is foolish to please the ass.false
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Answer : 3. "in trying to please all you please none. "
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Answer : 3. "a weather event. "
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Answer : 2. "destructive effects. "
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Answer : 3. "automation. "
Q:Read the following passage and answer the questions given after it.
Total area sown under Rabi crops has increased by 3.25% from 697.98 lakh hectares in 2021-22 to 720.68 lakh hectares in 2022-23. This is 22.71 lakh hectares more this year compared to corresponding period of 2021-22. Comparing with normal sown area(average of the last five years), the increase is to the tune of 13.71% from 633.80 to 720.68 lakh hectares. The increase in area is across all crops, - highest being in rice. Out of 22.71 lakh hectares increase in all Rabi crops, increase in rice area is 11.20 lakh hectares from 35.05 lakh hectares in 2021-22 to 46.25 lakh hectares in 2022-23. However, this is lower than normal sown area of 47.71 lakh hectares. Maximum increase in area under rice is in states of Telangana and West Bengal.
Area under oilseeds increased by 7.31% from 102.36 lakh hectares during 2021-22 to 109.84 lakh hectares this year. The increase in area under oilseeds at the rate of 7.31% is more than double the rate of increase of 3.25% in all crops together. Rajasthan, Madhya Pradesh and Chhattisgarh accounted for major expansion in area of oilseeds. Rapeseed & Mustard contributed maximum in increasing oilseeds area during this Rabi season. Mustard area increased by 6.77 lakh hectares from 91.25 lakh hectares in 2021-22 to 98.02 lakh hectares in 2022-23. Thus, out of 7.49 lakh hectares increase in area under oilseeds, rapeseed & mustard alone accounted for 6.44 lakh hectares. Pulse production is being focused to make country self-sufficient in these commodities. Area under pulses increased by 0.56 lakh hectares from 167.31 to 167.86 lakh hectares. Mung bean and lentil accounted for increase in area under pulses.
The United Nations General Assembly has declared the year 2023 as the International Year of Millets and India is at the forefront in celebrating the event in a big way. In order to create awareness about the benefits of millets as superfood and to meet its growing demand around the world, the Government is promoting millet production through the NFSM-Nutri Cereals component of National Food Security Mission programme in 212 districts of 14 states. Coarse cum Nutri-cereals saw an increase of 2.08 lakh hectares in area under cultivation from 51.42 lakh hectares in 2021-22 to 53.49 lakh hectares in 2022-23.
The main theme of the passage is
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64aa83ffc4e3d04ca1738eb9- 1increase in the area of Rabi crops in 2022-23true
- 2area under rabi crop in last five yearsfalse
- 3increase in the production of pulsesfalse
- 4increase in the area of oilseeds like mustardfalse
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