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Q. No.The genes causing cancer are:
1. Structural genes
2. Expressor genes
3. Oncogenes
4. Regulatory genes
Subtopic: Cancer |
94%
From NCERT
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How many of the given statements are correct?
1. 2
2. 3
3. 4
4. 5
| I: | Salmonella typhi is a pathogenic bacterium which causes typhoid fever in human beings. |
| II: | These pathogens generally enter the small intestine through food and water contaminated with them |
| III: | The pathogen remains confined to the small intestine. |
| IV: | Intestinal perforation and death may occur in severe cases. |
| V: | Typhoid fever could be confirmed by Widal test. |
2. 3
3. 4
4. 5
Subtopic: Typhoid Fever |
53%
From NCERT
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Which pair of the given bacteria can commonly cause pneumonia in humans?
| 1. | Streptococcus pneumoniae and Staphylococcus aureus |
| 2. | Haemophilus influenzae and Streptococcus pneumoniae |
| 3. | Pneumocystis carinii and Mycoplasma hominis |
| 4. | Streptococcus pyogenes and Bacillus anthracis |
Subtopic: Pneumonia & Related Questions |
96%
From NCERT
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All the following are bacterial diseases in man except:
1. Dysentery
2. Plague
3. Diphtheria
4. Measles
1. Dysentery
2. Plague
3. Diphtheria
4. Measles
Subtopic: Amoebiasis |
82%
From NCERT
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Which of the following statements will not be true regarding common cold?
| 1. | Rhino viruses cause the common cold. |
| 2. | Rhino viruses infect the nose and respiratory passage and frequently involve the lungs. |
| 3. | The common cold is characterised by nasal congestion and discharge, sore throat, hoarseness, cough, headache and tiredness. |
| 4. | It spreads though droplets and through contaminated objects. |
Subtopic: Common Cold & Malaria Introduction |
94%
From NCERT
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Identify the correct statements regarding the life cycle the malarial parasite:
1. I and II only
2. II and III only
3. II and IV only
4. I and III only
| I: | Sporozoites are the infectious form for humans. |
| II: | The parasites initially multiply within the red blood cells and then attack the liver cells. |
| III: | The rupture of RBCs is associated with release of a toxic substance, haemozoin, which is responsible for the chill and high fever recurring every three to four days. |
| IV: | Fertilization occurs in human RBCs |
1. I and II only
2. II and III only
3. II and IV only
4. I and III only
Subtopic: Treatment & Life Cycle of Malaria |
86%
From NCERT
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A healthy person acquires Ascaris infection through:
| 1. | Droplet |
| 2. | Direct contact |
| 3. | Contaminated water, vegetables, fruits, etc. |
| 4. | Mosquito Vector |
Subtopic: Ascariasis & Filariasis |
91%
From NCERT
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Which of the given pairs of infections in man are transmitted primarily by Aedes mosquito?
1. Chikungunya and Dengue
2. Lymphatic filariasis and Malaria
3. Schistosomiasis and Leishmaniasis
4. Lyme disease and Typhus
1. Chikungunya and Dengue
2. Lymphatic filariasis and Malaria
3. Schistosomiasis and Leishmaniasis
4. Lyme disease and Typhus
Subtopic: Common Diseases in Humans | Dengue | Chikungunya |
92%
From NCERT
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Effector lymphocytes of the innate immune system in system are called as:
1. T lymphocytes
2. B lymphocytes
3. Natural killer cells
4. Dendritic cells
1. T lymphocytes
2. B lymphocytes
3. Natural killer cells
4. Dendritic cells
Subtopic: Details of Immunity |
57%
From NCERT
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Consider the two statements:
| Assertion (A): | Any subsequent encounter with the same pathogen elicits a highly intensified secondary response of the acquired immune system in our body. |
| Reason (R): | Acquired immune response retains the memory of previous encounters with the antigens. |
| 1. | Both (A) and (R) are True and the (R) correctly explains (A). |
| 2. | (A) is True; (R) is False |
| 3. | (A) is False; (R) is True |
| 4. | Both (A) and (R) are True but the (R) does not correctly explain (A). |
Subtopic: Details of Immunity |
94%
From NCERT
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