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Q. No.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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Consider the given two statements:
| Assertion (A): | Techniques of molecular biology may be very helpful in prevention of certain cancers. |
| Reason (R): | Techniques of molecular biology can be applied to detect genes in individuals with inherited susceptibility to certain cancers. |
| 1. | Both (A) and (R) are True and (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 (R) does not correctly explain (A). |
Subtopic: Cancer |
87%
From NCERT
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Consider the given two statements:
| Assertion (A): | Many cancer patients are given substances called biological response modifiers such as α-interferon. |
| Reason (R): | Tumor cells have been shown to avoid detection and destruction by immune system. |
| 1. | Both (A) and (R) are True and (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 (R) does not correctly explain (A). |
Subtopic: Cancer |
62%
From NCERT
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Consider the given two statements:
| Assertion (A): | Cocaine has a potent stimulating action on central nervous system, producing a sense of euphoria and increased energy. |
| Reason (R): | Cocaine interferes with the transport of the neuro-transmitter dopamine. |
| 1. | Both (A) and (R) are True and (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 (R) does not correctly explain (A). |
Subtopic: Drugs & Alcohol Abuse |
85%
From NCERT
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