Q. No.How many of the given statements regarding HIV/AIDS are true?
I.
AIDS is a congenital disease
II.
Syndrome means a group of symptoms
III.
HIV is a rotavirus
IV.
HIV does not have an envelope
V.
HIV can be transmitted by an infected mother to her child through placenta
1.
2
2.
3
3.
4
4.
5
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| Assertion (A): | HIV/Aids infected persons should not be isolated from family and society. |
| Reason (R): | There is a time-lag of a few months to many years [usually 5-10 years] between infection and the appearance of AIDS symptoms. |
| 1. | Both (A) and (R) are false. |
| 2. | Both (A) and (R) are true and (R) explains (A). |
| 3. | Both (A) and (R) are true but (R) does not correctly explain (A). |
| 4. | (A) is true but (R) is false. |
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| I: | HIV first enters into the macrophages. |
| II: | Macrophages are used by HIV as a factory to produce more virus particles. |
| III: | The viral cDNA does not get integrated into any cells in the human body. |
| IV: | HIV also enters the T-helper cells and destroys them. |
| V: | The anti-retroviral treatment for AIDS is completely curative. |
| 1. | All except V | 2. | Only III and V |
| 3. | Only I, III and IV | 4. | All |
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| I: | Almost all carcinogens are mutagens. |
| II: | X-rays and Gamma rays are non-ionising. |
| III: | UV rays are ionising radiations. |
1. Only I is correct
2. Only II and III are correct
3. Only III is correct
4. I, II, and III are correct
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| Assertion (A): | Early detection of cancer is essential for a favourable prognosis. |
| Reason (R): | Early detection allows the disease to be treated successfully in many cases. |
| 1. | Both (A) and (R) are true and (R) correctly explains (A). |
| 2. | Both (A) and (R) are false. |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are true but (R) does not explain (A). |
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| 1. | Leukaemias are diagnosed by blood and bone marrow tests. |
| 2. | CT scan uses X rays. |
| 3. | MRI uses ionising radiation and strong magnetic fields. |
| 4. | Antibodies against cancer-specific antigens can be used for the detection of certain cancers. |
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| Assertion (A): | Biological response modifiers like alpha interferon can help detection and destruction of tumour cells by the immune system. |
| Reason (R): | Such biological response modifiers activate the immune system of the patient. |
| 1. | Both (A) and (R) are True but (R) does not explain (A). |
| 2. | Both (A) and (R) are False. |
| 3. | Both (A) and (R) are True and (R) correctly explains (A). |
| 4. | (A) is True but (R) is False. |
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| Assertion (A): | Smoking causes oxygen deficiency in the body. |
| Reason (R): | Smoking increases the concentration of haembound oxygen. |
| 1. | Both (A) and (R) are false. |
| 2. | (A) is true but (R) is false. |
| 3. | Both (A) and (R) are true and (R) correctly explains (A). |
| 4. | Both (A) and (R) are true but (R) does not explain (A). |
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| Assertion (A): | Adolescence is a very vulnerable phase of mental and psychological development of an individual. |
| Reason (R): | The period between 12-18 years of age is considered as adolescence period. |
| 1. | Both (A) and (R) are true and (R) explains (A). |
| 2. | (A) is true but (R) is false. |
| 3. | Both (A) and (R) are true but (R) does not correctly explain (A). |
| 4. | Both (A) and (R) are false. |
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| COLUMN I | COLUMN II | ||
| A | Addiction | P | An adaptive state associated with a withdrawal syndrome upon cessation of repeated exposure to a stimulus (e.g., drug intake) |
| B | Dependence | Q | A biopsychosocial disorder characterized by persistent use of drugs (including alcohol) despite substantial harm and adverse consequences |
| C | Tolerance | R | The diminishing effect of a drug resulting from repeated administration at a given dose |
| A | B | C | |
| 1. | Q | R | P |
| 2. | Q | P | R |
| 3. | P | Q | R |
| 4. | P | R | Q |
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