| 6. | The antigen-specific lymphocytes can be immortalized by which of the following method? |
| a. | Transfection with tumor derived DNA |
| b. | Hybridization with a suitable lymphoid tumor cell |
| c. | Transformation following infection by Epstein-Barr virus (EB V) |
| d. | All of the above |
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Answer: (d).All of the above
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| 7. | A cytokine that stimulates the activity of B and T cells is |
| a. | lymphotoxin |
| b. | interlukin-2 |
| c. | interlukin-1 |
| d. | all of these |
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Answer: (b).interlukin-2
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| 8. | Which type of cell actually secrets antibodies? |
| a. | plasma cells |
| b. | T cells |
| c. | macrophages |
| d. | dendritic cells |
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Answer: (a).plasma cells
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| 9. | Which of the following is correct? |
| a. | rabbits do not make myelomas whereas mice are unable to synthesize antibodies |
| b. | rabbits do not make myelomas whereas mice are able to synthesize antibodies |
| c. | rabbits make myelomas whereas mice are unable to synthesize antibodies |
| d. | rabbits make myelomas whereas mice are able to synthesize antibodies |
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Answer: (a).rabbits do not make myelomas whereas mice are unable to synthesize antibodies
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| 10. | The Ig locus is about |
| a. | 2/3rd of all hybridomas |
| b. | l/3rd of all hybridomas |
| c. | l/2nd of all hybridomas |
| d. | 1/4th of all hybridomas |
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Answer: (a).2/3rd of all hybridomas
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