$A$ benign tumour is one which:

Which group of diseases cannot be classified as infectious diseases?

Select the true statements.
$I.$ Cancer can be detected by the use of antibodies against cancer-specific antigens for certain types of cancer.
$II.$ The tumor cells are surgically removed to reduce the load of cancerous cells.
$III.$ Certain chemotherapeutic drugs are used to kill the cancerous cells,but the majority of the drugs have side effects like hair loss,anaemia,etc.

Which of the following techniques is useful for the detection of cancer?

. . . . . . transforms a normal cell into a cancerous cell.

Define metastasis and viral oncogenes.