- 1(current)
Q. No.Cancer is :
| 1. | a disease caused by DNA viruses |
| 2. | caused by the multiplicity of virulent infections |
| 3. | a genetic disease caused by multiple mutational events |
| 4. | a hazard due to the occupation of an individual |
Cancer cells exhibit:
| 1. | Contact inhibition | 2. | Low division rate |
| 3. | Metastasis | 4. | High degree of differentiation |
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Metastasis shown by malignant tumors:
| 1. | is due to contact inhibition exhibited by cells. |
| 2. | causes cells to remain undifferentiated. |
| 3. | makes cancer cells susceptible to be killed by radiation. |
| 4. | can start secondary tumors at distant sites in the body. |
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Cancer causing genes are called:
| 1. | structural genes | 2. | expressor genes |
| 3. | oncogenes | 4. | regulatory genes |
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A tumor that invades surrounding tissues is usually capable of producing metastases, may recur after attempted removal, and is likely to cause death unless adequately treated. Such a tumor is called a:
| 1. | Benign tumor | 2. | Malignant tumor |
| 3. | Teratoma | 4. | Secondary tumor |
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A normal cellular gene which when altered by mutation can contribute to cancer is called:
| 1. | Oncogene | 2. | V – Onc |
| 3. | Neoplastic gene | 4. | Proto-oncogene |
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Cancer detection is mainly based on:
| 1. | Radiography | 2. | Ultrasonography |
| 3. | Magnetic resonance imaging | 4. | Histopathology |
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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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- 1(current)
Q. No.
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