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Question

Mention the various ways in which cancer can be treated. [3]


Solution

Cancer is treated in the following ways : 
  1. Tumor cells are irradiated lethally, taking proper care of the normal tissues surrounding the tumor mass. This process is called radiation therapy. [1]
  2. Chemotherapeutic drugs are also used to kill cancerous cells. [1]
  3. Tumor cells avoid detection and destruction by the immune system. Biological response modifiers such as alpha-interferon activate the immune system and help in destroying the tumor. [1]

Biology

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