English प्रश्न और उत्तर का अभ्यास करें
8 प्र: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
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 5. "(a), (b) and (c) "
प्र: Select the most appropriate word to fill in the blank.
The Covid-19 pandemic has hit many industries really ______.
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643fc50401d99786d0f5179eThe Covid-19 pandemic has hit many industries really ______.
- 1hardlyfalse
- 2hardyfalse
- 3hardtrue
- 4Wellfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 3. "hard "
प्र:Instructions :In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.
Comprehension:
I would uncover the story that lay (1) ______ between the lines of the men’s exploits. Better still, I (2) ______ one of them tell it herself, with all her joys and doubts, her struggles and her triumphs, her heartbreaks, her achievements, the unique female way (3) ______ which she sees her world and her place in it. And who could be (4) ______ for this than Panchaali? It is her life, her voice, her questions, and her vision that I invite you (5) ______ 'The Palace of Illusions'.
Select the most appropriate option to fill in the blank No. 4.
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6447b477cd6ea382cf825fe0- 1better suitedtrue
- 2better performedfalse
- 3better meantfalse
- 4best matchedfalse
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उत्तर : 1. "better suited"
प्र:Comprehension: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Yoga is a personal journey for everyone as now most people are turning to it, not for fitness (1) ________, but for the union of both, body and soul. Yoga is an ancient practice that (2) _________ in India. It involves movement, meditation and breathing (3) _________ to promote mental and physical well-being. There are many styles of yoga. A person should (4) __________ a style based on their goals and fitness level. If yoga and pranayam are complemented with other forms of spiritual practice to purify the mental body and other bodies, then a person can achieve rapid spiritual progress in his lifetime. Thus a person can make progress to achieve the purpose of life which is to (5) __________ with God.
Select the most appropriate option to fill in blank number 2.
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64622564cdae930acb7714e4Yoga is a personal journey for everyone as now most people are turning to it, not for fitness (1) ________, but for the union of both, body and soul. Yoga is an ancient practice that (2) _________ in India. It involves movement, meditation and breathing (3) _________ to promote mental and physical well-being. There are many styles of yoga. A person should (4) __________ a style based on their goals and fitness level. If yoga and pranayam are complemented with other forms of spiritual practice to purify the mental body and other bodies, then a person can achieve rapid spiritual progress in his lifetime. Thus a person can make progress to achieve the purpose of life which is to (5) __________ with God.
- 1settledfalse
- 2camefalse
- 3originatedtrue
- 4involvedfalse
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उत्तर : 3. "originated"
प्र:Direction: In the following questions, a sentence has been given in Active voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive voice.
This picture had been drawn by me.
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632c70965c208a6bf7ec21c7- 1I had drawn this picturetrue
- 2I have drawn this picturefalse
- 3I drew this picturefalse
- 4I drawn this picturefalse
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उत्तर : 1. "I had drawn this picture "
प्र: Parts of the following sentence are given as options. Identify the part that contains a grammatical error. If there is no error, select 'No error'.
That was a good / conversation, I look forward / to meet you.
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644b9b709471d8ce70d3bd6c- 1That was a goodfalse
- 2to meet you.true
- 3conversation, I look forwardfalse
- 4No errorfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "to meet you."
प्र: Select the most appropriate option to fill in the blank. We are selling a single orange ______ ₹10 but nobody is ready to buy it.
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642ac77ddcb650c14577057e- 1onfalse
- 2tofalse
- 3withfalse
- 4Fortrue
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 4. "For"
प्र: Select the synonym of “Sheath”
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6018f92a580e304323a6ec36- 1weaponfalse
- 2encouragefalse
- 3hidefalse
- 4coattrue
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice

