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प्रश्न
What is cancer?
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उत्तर
Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body’s normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor. Some cancers, such as leukemia, do not form tumors.
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संबंधित प्रश्न
Give the symptoms of cancer.
antiviral proteins released by cells infected by the virus are called ______.
What is ‘Leukemia’?
Enlist any four therapies used to treat a cancer patient.
Metastasis is associated with ______.
Carcinogens are cancer causing agents.
One of the following is INCORRECT about cancer cells.
In malignant tumors, the cells proliferate, grow rapidly and move to other parts of the body to form new tumors. This stage of disease is called ______.
In the given flow diagram, the replication of retrovirus in a host is shown. Observe and answer the following questions.
Fill in (1) and (2)
Why is the virus called retrovirus?
Can the infected cell survive while viruses are being replicated and released?
Give the full form of CT and MRI. How are they different from each other? Where are they used?
What is cancer? How is a cancer cell different from the normal cell? How do normal cells attain cancerous nature?
Which disease is caused by HPV?
Name any two techniques used to detect the cancer of internal organs and write about any one of them.
Which of the following best defines cancer?
What is a tumour?
During metastasis, where do cancer cells travel to form secondary tumours?
What is adenocarcinoma?
Which of the following is a characteristic of malignant tumours?
