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What is meant by contact inhibition?

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Important Questions on Human Health and Disease

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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Which is the most feared property of malignant tumors?
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Which one of the following properties of normal cell is lost during its transition to cancerous cell?
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Identify the techniques useful in detecting the cancers of internal organs.
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Causative organism of cervical cancer is
MEDIUM
Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Which of the following statements are not true for cancer cells in relation to mutations?
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer

Carcinogen present in coal tar is

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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
In malignant tumors, the cells divide rapidly and move to distant parts of the body and cause new tumors. This property is called
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Which one of the following is not a characteristic of cancerous cell whereas the remaining three are?
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
The drug extracted from this plant is used as an anti-cancer drug.
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Chronic Myeloid Leukemia CML, a type of blood cancer, is caused due to
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Tumor-causing virus has
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Which one of the following is used to treat cancers?
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
_____ have the ability to transform normal cells into cancerous cells.
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Assertion (A): Chemotherapy is used to destroy cancer cells that might have moved to parts of body
Reason (R): Chemotherapy has side effects such as loss of hair due to destruction of 'hair follicle cells
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Which of the following is a mismatching pair of the disease and medicine?
MEDIUM
Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Explain two characteristics of cancer cells.
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
'Contact inhibition' is the property of which cells?
MEDIUM
Biology>Biology in Human Welfare>Human Health and Disease>Cancer

Study the following statements.
I) Cancer of connective tissues is called carcinoma.
II) α-lactalbumin is used to treat emphysema.
III) Chromium is carcinogenic.
IV) Sporadic cancers are non-hereditary.

Correct statements of the above is:

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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Certain tumors are called malignant because,
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Biology>Biology in Human Welfare>Human Health and Disease>Cancer
Enzyme X catalyzes hydrolysis of GTP into GDP. The GTP-bound form of X transmits a signal that leads to cell proliferation. The GDP-bound form does not transmit any such signal. Mutations in X are found in many cancers. Which of the following alterations of X are most likely to contribute to cancer?