Biology, asked by Pintusharma1, 1 year ago

what is the cause of cancer

Answers

Answered by Anonymous
1
The Cancer happen in a human body for indefinite cell division in blood..
Answered by Anonymous
1

Answer:

  • Transformation of normal cells into cancerous neoplastic cells may be induced by physical, chemical or  biological agents.
  • Ionizing radiations like X-rays and gamma rays and non-ionizing radiations like UV rays cause
  • DNA damage leading to neoplastic transformation.
  • The chemical carcinogens present in tobacco smoke cause  lung cancer.
  • Cancer causing viruses called oncogenic viruses have genes called viral oncogenes.
  • Several genes  called cellular oncogene or proto oncogenes, when activated under certain conditions could lead to  oncogenic transformation of the cells.

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