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One set of plants was grown at 12 h day and 12 h night period cycles and it flowered. While for another set of the same plant, the night period was interrupted by a flash of light at midnight and it did not flower. The plants used for the above set of experiments are
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The short-long day plants are the plants that initiate flower buds only when a sequence of short day period are followed by long night period. When there is interruption by a flash of light in the dark period, these plants fail to flower.
Thus, the correct answer is option C.
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Question 2
Select the option which fills in the blanks (a, b, c, d) in the following paragraph with a proper combination of (i), (ii), (iii) and (iv), wherein (i) represents longer,(ii) represents shorter, (iii) represents prevents, and(iv) represents induces. Short day (SD) plants flower when night lengths are a than a critical dark period. Interruption of the dark period by a brief light treatment b flowering in SD plants. Long day (LD) plants flower when night length is c than a critical period. Shortening of the night with a brief light treatment d flowering in LD plants.
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| Question Text | One set of plants was grown at 12 h day and 12 h night period cycles and it flowered. While for another set of the same plant, the night period was interrupted by a flash of light at midnight and it did not flower. The plants used for the above set of experiments are |
| Answer Type | Text solution:1 |
| Upvotes | 150 |
