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Q. No.Which of the following is an example of naturally acquired passive immunity?
1.
giving anti-venom injection to a person with snake bite
2.
passage of IgG class of antibodies through placenta to the foetus and also of IgA class through colostrums
3.
giving vaccine produced in recombinant yeast to prevent Hepatitis B
4.
a person getting infected by a bacterium and developing antibodies against it
Subtopic: Active & Passive Immunity |
81%
From NCERT
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Identify the incorrect statement:
1. Allergies are exaggerated response of immune system mediated by IgE antibodies and involves histamine
2. Rheumatoid arthritis is an example of an auto-immune disease
3. Bone marrow and thymus are secondary lymphoid organs
4. MALT constitutes about 50 percent of the lymphoid tissue in the body
1. Allergies are exaggerated response of immune system mediated by IgE antibodies and involves histamine
2. Rheumatoid arthritis is an example of an auto-immune disease
3. Bone marrow and thymus are secondary lymphoid organs
4. MALT constitutes about 50 percent of the lymphoid tissue in the body
Subtopic: Human Immune System |
92%
From NCERT
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HIV, a retrovirus causing AIDS in humans, cannot be transmitted through:
| 1. | sexual contact with infected persons |
| 2. | transfusion of contaminated blood and blood products and sharing infected needles |
| 3. | placenta from the infected mother to her child |
| 4. | mere touch or physical contact |
Subtopic: AIDS |
94%
From NCERT
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The immunodeficiency seen in patients suffering from AIDS is due to the fact that HIV selectively targets and destroys:
1. T helper cells
2. Macrophages and Mast cells
3. B cells
4. N K Cells
1. T helper cells
2. Macrophages and Mast cells
3. B cells
4. N K Cells
Subtopic: AIDS |
94%
From NCERT
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Cells of a malignant tumour reach distant sites through blood and wherever they get lodged in the body, start a new tumour there. This property is called:
1. Oncogenic transformation
2. Contact inhibition
3. Metastasis
4. Carcinogenesis
1. Oncogenic transformation
2. Contact inhibition
3. Metastasis
4. Carcinogenesis
Subtopic: Cancer |
91%
From NCERT
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In a monovalent antibody molecule:
| 1. | there are 4 heavy and two light chains |
| 2. | the chains are held together with disulphide bonds |
| 3. | an antigen binging site is present between two light chains |
| 4. | the light chains have secondary structures and the heavy chains have tertiary structure |
Subtopic: Details of Immunity |
74%
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B cells:
1. are processed in thymus
2. produce antibodies
3. are responsible for graft rejection
4. respond to the pathogen only from the primary lymphoid organs
1. are processed in thymus
2. produce antibodies
3. are responsible for graft rejection
4. respond to the pathogen only from the primary lymphoid organs
Subtopic: Details of Immunity |
83%
From NCERT
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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 |
72%
From NCERT
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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 |
From NCERT
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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%
From NCERT
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