Q. Read the following statements about cancer. Identify the true and false ones and select the correct option.
A. Cancer cells lose the property of contact inhibition
B. The property of metastasis is mostly found in benign tumors.
C. The transformation of normal cells into cancerous cells occurs only because of chemical agents.
D. The chemical carcinogen present in tobacco smoke is a major cause of lung cancer.

 1535  170 NTA AbhyasNTA Abhyas 2020Human Health and Disease Report Error

Solution:

Metastasis is a property shown by malignant tumors. It is the property by virtue of which they grow very rapidly and invade the surrounding tissues. Transformation of normal cells into cancerous cells can occur because of physical, biological or chemical agents called carcinogens.