| 36. | Which of the following is not true about the helper plasmids? |
| a. | These can replicate in Agrobacterium |
| b. | These help in the mediating conjugation of intermediate vectors |
| c. | These can't replicate in Agrobacterium |
| d. | All of the above |
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Answer: (a).These can replicate in Agrobacterium
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| 37. | Which technique is used to introduce genes into dicots? |
| a. | electroporation |
| b. | particle acceleration |
| c. | microinjection |
| d. | Ti plasmid infection |
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Answer: (d).Ti plasmid infection
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| 38. | Direct DNA uptake by protoplasts can be stimulated by |
| a. | polyethylene glycol (PEG) |
| b. | decanal |
| c. | luciferin |
| d. | all of these |
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Answer: (a).polyethylene glycol (PEG)
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| 39. | Cultivated tomato species (Lycopersicon esculentum) has a high degree of resistance towards |
| a. | Meloidogyne spp.nematodes |
| b. | L. peruviaanum |
| c. | both (a) and (b) |
| d. | Solarium melongena |
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Answer: (b).L. peruviaanum
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| 40. | When the transposon jumps into an otherwise functional gene, it has the effect of |
| a. | blocking correct transcription |
| b. | initiating correct transcription |
| c. | propagating correct transcription |
| d. | initiating some genetic codes |
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Answer: (a).blocking correct transcription
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