Carcinogenic agent is

The nucleus of cancerous cells becomes

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 is responsible for causing leukemia?

The genetic material $DNA$ of a cell is sensitive to which of the following radiations?

Cancer cells are characterized by: