UPSC Prelims 2001·GS1·science-and-technology·science and technology

“Metastasis” is the process by which

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Last updated 23 May 2026, 3:31 pm IST
  1. Acells divide rapidly under the influence of drugs
  2. Bcancer cells spread through the blood or lymphatic system to other sites or organsCorrect
  3. Cthe chromosomes in cell nuclei are attached to the spindle before moving to the anaphase poles
  4. Dcancer cells are successfully inhibited to divide any further

Explanation

In medical science, metastasis is the specific process where cancer cells break away from the original tumor, travel through the bloodstream or the lymphatic system, and form new tumors in other parts of the body. Option A describes a reaction to drugs, while Option C refers to a stage in normal cell division called mitosis. Option D refers to cancer remission or successful treatment. Therefore, the defining characteristic of metastasis is the spread of cancer to distant organs.
science-and-technology: “Metastasis” is the process by which

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