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Q. No.The ‘Omicron’ variant of SARS-Cov2 is designated as:
1. B.1.1.529
2. B.1.1.7
3. B.1.351
4. B.1.617.2
1. B.1.1.529
2. B.1.1.7
3. B.1.351
4. B.1.617.2
Subtopic: Introduction | Common Cold & Malaria Introduction |
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Subtopic: Common Cold & Malaria Introduction |
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Both Wuchereria and Ascaris:
| 1. | are trandmitted by the bite of a female mosquito vector |
| 2. | are transmitted by contaminated food and water |
| 3. | are nematodes |
| 4. | can cause intestinal obstruction in affected children |
Subtopic: Ascariasis & Filariasis |
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Which of the following measures is most effective in the prevention of malaria?
1. Vaccination against the malaria parasite.
2. Use of bed nets treated with insecticides.
3. Taking antibiotics regularly.
4. Use of repellents to kill adult mosquitoes.
1. Vaccination against the malaria parasite.
2. Use of bed nets treated with insecticides.
3. Taking antibiotics regularly.
4. Use of repellents to kill adult mosquitoes.
Subtopic: Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria |
From NCERT
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How is polio transmitted?
1. Through contaminated food and water
2. Through droplet
3. By arthropod vectors
4. By vertebrate vectors
1. Through contaminated food and water
2. Through droplet
3. By arthropod vectors
4. By vertebrate vectors
Subtopic: Common Diseases in Humans |
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How many of the diseases given in the box are infectious diseases?
1. 2
2. 3
3. 4
4. 5
| Influenza, Asthma, Small pox, Allergy, Plague, Tetanus, Herpes, Diabetes |
2. 3
3. 4
4. 5
Subtopic: Common Diseases in Humans |
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What is the causative agent of dengue fever in humans?
| 1. | Aedes aegypti mosquito | 2. | A virus |
| 3. | A bacterium | 4. | Prion |
Subtopic: Common Diseases in Humans | Dengue |
From NCERT
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How many of the given statements about COVID-19 are correct?
Options:
| I: | COVID-19 is caused by the SARS-CoV-2 virus, a member of the retrovirus family. |
| II: | The primary mode of transmission is through respiratory droplets. |
| III: | Symptoms of COVID-19 include fever, dry cough, and difficulty in breathing. |
| IV: | Vaccines for COVID-19 work by stimulating the immune system to recognize the spike protein of the virus. |
| V: | SARS-CoV-2 infects humans by targeting CD4 cells of the immune system. |
| 1. | Only 1 is correct | 2. | Only 2 are correct |
| 3. | Only 3 are correct | 4. | All 5 are correct |
Subtopic: Common Diseases in Humans |
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How does the dengue virus cause complications in infected patients?
| 1. | By directly infecting and destroying red blood cells, leading to anaemia. |
| 2. | By causing fluid leakage from blood vessels, which can lead to low blood pressure and shock. |
| 3. | By infecting the respiratory system, causing difficulty in breathing. |
| 4. | By producing toxins that directly damage liver cells and lead to jaundice. |
Subtopic: Dengue |
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Consider the following statements:
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is incorrect but II is correct
4. I is correct but II is incorrect
| I: | Immunity provided by antibodies is called humoral immunity. |
| II: | Antibodies are secreted by B cells. |
2. Both I and II are correct but II does not explain I
3. I is incorrect but II is correct
4. I is correct but II is incorrect
Subtopic: Human Immune System |
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