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Mohini, a resident of Chandigarh went to Shimla with her parents. There she found the same plant that they have in their backyard, at home. However, she observed that while the plants in their backyard bore white flowers, those in Shimla had pink flowers. She brought home some seeds of the plant from Shimla and planted them in Chandigarh. Upon performing self breeding for several generations she found that the plant from Shimla produced only white flowers. (a) According to you what might be the reason for this observation-genetic or eavironmental factors ? (b) Suggest a simple experiment to determine whether this variation is genetic in nature (c) Suggest another experiment to check whether this variation in flower color is due to environmental fctors. |
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Answer» Sol. (a) Difference in flower color is most likely due to environmental factors (b) Perform cross breeding between the plants from Chandigarh and those from Shimla to find out whether we get any pink flowers or flowers with any shade of color between pink and white in the F1 generation (c) Grow the plants from Chandigarh in Shimla and check whether they still produce white flowers or bear pink flowers |
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