Which of the following is NOT true regarding cancer and its mechanism?
1
Normal cells show a property called contact inhibition by virtue of which contact with other cells inhibits their uncontrolled growth. Cancer cells appear to have lost this property.
2
Cancerous cells just continue to divide giving rise to masses of cells called tumors. Tumors are of two types: benign and malignant.
3
The malignant tumors, on the other hand are a mass of proliferating cells called neoplastic or tumor cells. These cells grow very rapidly, invading, and damaging the surrounding normal tissues.
4
Metastasis is the property exhibited by benign tumors.
5
Question Not Attempted