Dumb-bell shaped guard cells are present in – (1) Groundnut (2) Gram (3) Wheat (4) Mango

Dumb-bell shaped guard cells are present in – (1) Groundnut (2) Gram (3) Wheat (4) Mango
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(3) Wheat Explanation: Guard cells are dumb-bell shaped in monocots such as wheat. The central portion of the guard cells in wheat is narrow and two ends are bulbous. Guard cells are surrounded by adjacent subsidiary cells.
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