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Q. No.Consider the tow statements:
Assertion (A):
Antibody mediated acquired immune response is called as humoral immune response.
Reason (R):
The antibodies are found in the blood.
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: Human Immune System |
66%
From NCERT
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The cell mediated immune response:
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
| I: | is mediated by T lymphocytes. |
| II: | produces more antibodies than in the humoral immune response. |
| III: | is characterised by memory. |
| IV: | is responsible for graft rejections. |
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
Subtopic: Details of Immunity |
71%
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The four polypeptide chains in the monovalent structure of an antibody molecule are held together by:
1. Hydrogen bonds
2. Electrostatic interactions
3. Van der Waal forces
4. Disulfide bonds
1. Hydrogen bonds
2. Electrostatic interactions
3. Van der Waal forces
4. Disulfide bonds
Subtopic: Details of Immunity |
88%
From NCERT
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Consider the given two statements:
| Assertion (A): | At birth, human babies have high levels of antibodies, with the same range of antigen specificities as their mother. |
| Reason (R): | This is passive immunity because the fetus does not actually make any memory cells or antibodies. |
| 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: Active & Passive Immunity |
From NCERT
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Second generation vaccines consist of specific protein antigens or recombinant protein components. One such vaccine is:
1. Hepatitis B Vaccine
2. Oral Polio Vaccine
3. BCG
4. DPT
1. Hepatitis B Vaccine
2. Oral Polio Vaccine
3. BCG
4. DPT
Subtopic: Details of Immunity |
81%
From NCERT
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Allergic responses are mediated in humans by the antibodies belonging to the class:
1. IgG
2. IgD
3. IgE
4. IgM
1. IgG
2. IgD
3. IgE
4. IgM
Subtopic: Details of Immunity |
94%
From NCERT
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Identify the incorrect statement:
| 1. | The primary lymphoid organs are bone marrow and thymus. |
| 2. | Peyer’s patches are masses of lymphoid tissue in small intestine. |
| 3. | All blood cells excluding lymphocytes are produced in bone marrow. |
| 4. | Thymus regresses in size with age. |
Subtopic: Human Immune System |
83%
From NCERT
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HIV infected person starts suffering from infections that could have been otherwise overcome when the virus has destroyed a significant number of:
1. Helper T lymphocytes
2. Cytotoxic T lymphocytes
3. B lymphocytes
4. Macrophages
1. Helper T lymphocytes
2. Cytotoxic T lymphocytes
3. B lymphocytes
4. Macrophages
Subtopic: AIDS |
92%
From NCERT
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Consider the given two statements:
| Assertion (A): | It is very important that the HIV/AIDS infected persons are not isolated from family and society. |
| Reason (R): | HIV/AIDS is not an infectious disease. |
| 1. | Both (A) and (R) are True and (R) correctly explains Assertion. |
| 2. | (A) is True; (R) is False |
| 3. | (A) is False; (R) is True |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: AIDS |
53%
From NCERT
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When activated under certain conditions, which of the following could lead to oncogenic transformation of the cells?
1. Proto-oncogene
2. Viral-oncogene
3. Jumping genes
4. Pseudogenes
1. Proto-oncogene
2. Viral-oncogene
3. Jumping genes
4. Pseudogenes
Subtopic: Cancer |
88%
From NCERT
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