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Q. No.To infect human cells, HIV:
1.
produces complementary DNA with reverse transcriptase
2.
produces complementary RNA with reverse transcriptase
3.
uses the receptors of certain drugs located on lung cells
4.
must be transmitted by a vector
Subtopic: AIDS | Cancer |
73%
Level 2: 60%+
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Cancer can be finally diagnosed by:
| 1. | immunomodulation by alpha interferons |
| 2. | Histopathology after taking a biopsy |
| 3. | CT Scan and MRI |
| 4. | Fiber optic endoscopy and FNAC |
Subtopic: Cancer |
Level 3: 35%-60%
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes
| COLUMN I | COLUMN II | ||
| A | Morphine | P | Derived from poppy seeds, it is a strong painkiller |
| B | Alcohol | Q | In chronic cases, it can cause cirrhosis of liver |
| C | Nicotine | R | Derived from leaves of a plant, it is CNS stimulant and can cause hallucinations |
| D. | Cocaine | S | Stimulates adrenal medulla to release adrenaline and nor adrenaline |
Codes
| A | B | C | D | |
| 1. | Q | P | R | S |
| 2. | P | Q | S | R |
| 3. | R | S | Q | P |
| 4. | S | R | P | Q |
Subtopic: Drugs & Alcohol Abuse |
92%
Level 1: 80%+
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
| Statement I: | Autoimmune disorder is a condition where body defense mechanism recognized its own cells as foreign bodies |
| Statement II: | Rheumatoid arthritis is a condition where body does not attack self cells |
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: Allergies & Autoimmunity |
81%
Level 1: 80%+
NEET - 2022
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Select the incorrect statement with respect to acquired immunity.
| 1. | Acquired immunity is non-specific type of defense present at the time of birth. |
| 2. | Primary response is produced when our body encounters a pathogen for the first time. |
| 3. | Anamnestic response is elicited on subsequent encounters with the same pathogen. |
| 4. | Anamnestic response is due to memory of first encounter. |
Subtopic: Details of Immunity |
81%
Level 1: 80%+
NEET - 2022
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Immuno-suppressants are administered to burn patients or during organ transplantation to suppress:
1. Innate immunity
2. Cytokine Storm
3. Humoral immunity
4. Cell-mediated immunity
Subtopic: Details of Immunity |
88%
Level 1: 80%+
NEET - 2022
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Give below are two statements :
| Statement I: | When an infected female Anopheles mosquito bites, it releases gametocytes of plasmodium into the healthy person. |
| Statement II: | The female Anopheles mosquito takes up sporozoites of Plasmodium with blood meal from an infected person, suffering from malaria. |
In light of the above statements, choose the most appropriate answer from the options given below :
1. Statement I is correct but Statement II is incorrect.
2. Statement I is incorrect but Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria |
53%
Level 3: 35%-60%
NEET - 2022
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Which one of the following acts as the “alarm signal” to activate the body’s immune system by stimulating helper T cells?
| 1. | B cells | 2. | interleukin-2 |
| 3. | interleukin-1 | 4. | histamines |
Subtopic: Details of Immunity | Active & Passive Immunity |
Level 4: Below 35%
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The immunoglobin ___________ is involved in the primary response to an invading microorganism, and ____________ is involved in the secondary response.
1. IgG / IgM
2. IgM / IgE
3. IgE / histamines
4. IgM / IgG
1. IgG / IgM
2. IgM / IgE
3. IgE / histamines
4. IgM / IgG
Subtopic: Details of Immunity | Active & Passive Immunity |
Level 3: 35%-60%
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| Assertion(A): | Second infection of the same pathogen is quickly eliminated. |
| Reason(R): | Killer T cells becomes hyperactivated, and destroy extracellular pathogens |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Active & Passive Immunity | Allergies & Autoimmunity |
Level 3: 35%-60%
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