Human Health and Disease
- Chemically an antibody is a
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Antibodies are specific proteins synthesized by the host in response to an antigen. All antibody molecules are immunoglobulins.
Correct Option: C
Antibodies are specific proteins synthesized by the host in response to an antigen. All antibody molecules are immunoglobulins.
- A cell coded protein formed in response to infection with most animal viruses is
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A special defence system works specially against viral infection. It has no effect on micro-organism. Cells invaded by a virus produce an antiviral protein called interferon (IFN). The latter is released from the infected cell and on reaching the nearby non-infected cells it makes them resistant to the virus infection.
Correct Option: C
A special defence system works specially against viral infection. It has no effect on micro-organism. Cells invaded by a virus produce an antiviral protein called interferon (IFN). The latter is released from the infected cell and on reaching the nearby non-infected cells it makes them resistant to the virus infection.
- Obstacle to large scale transplantation of organs is
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The major obstacle in transplantation of organs is that the recipient body does not accept the donor’s organ. The body defence mechanism reject & treat the transplanted organ as a foreign particle and reacts actively.
Correct Option: B
The major obstacle in transplantation of organs is that the recipient body does not accept the donor’s organ. The body defence mechanism reject & treat the transplanted organ as a foreign particle and reacts actively.
- Which of the following statements is not true for cancer cells in relation to mutations?
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Telomerase production is increased in cancer. Telomerase has been examined in hundreds of studies as a potentially sensitive biomarker for screening, early cancer detection, prognosis or in monitoring as an indication of residual disease.
Correct Option: D
Telomerase production is increased in cancer. Telomerase has been examined in hundreds of studies as a potentially sensitive biomarker for screening, early cancer detection, prognosis or in monitoring as an indication of residual disease.
- Which one of the following is not a property of cancerous cells whereas the remaining three are?
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Contact inhibition is a property of normal cell not of cancer cells. Due to this property they remain in contact with other cells inhibit their growth.
Correct Option: D
Contact inhibition is a property of normal cell not of cancer cells. Due to this property they remain in contact with other cells inhibit their growth.