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a. Cancer is one of the most dreaded diseases of humans. Explain ‘Contact inhibition’ and ‘Metastasis’ with respect to the disease. b. Name the group of genes which have been identified in normal cells that could lead to cancer and how they do so? c. Name any two techniques which are useful to detect cancers of internal organs. d. Why are cancer patients often given α-interferon as part of the treatment? |
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Answer» a. Contact inhibition is the property of normal cells in which contact with other cells inhibits their uncontrolled growth. Metastasis is the property in which tumour cells reach distant sites in the body, through blood. b. Proto oncogenes or Cellular oncogenes. These genes when activated under certain condition could lead to oncogenic transformation of the cells. c. Biopsy/radiography/CT/MRI (Any two) d. α-interferon activates immune system and destroys the tumour. |
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