What is the use of Radiotherapy for the treatment of Cancer?
1) It destroys the tumor by destroying the Cell membranes of the Cancerous Cells
2) It destroys the tumor by destroying the DNA of the Cancerous Cells
3) It destroys the tumor by destroying the Cytoplasm of the Cancerous Cells
4) It destroys the tumor by destroying the spindle fibres which are used in Cell Division
2) It destroys the tumor by destroying the DNA of the Cancerous Cells