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. |
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 |
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 |
Cancer detection is mainly based on:
1. | Radiography | 2. | Ultrasonography |
3. | Magnetic resonance imaging | 4. | Histopathology |