First slide
Plant Growth Regulators
Question

How many of the following statements are correct regarding the plant hormone ethylene?
(a) Can cause internode and petiole elongation in deep water rice plants 
(b) Is involved in ripening of climacteric fruit
(c) Induces flowering in mango 
(d) Is derived from t-RNA 
(e) Seed dormancy in peanut 

Easy
Solution

Ethylene causes petiole and internode elongation in deep water rice, speeds up malting process in breweries. It does not cause dormancy in peanut and it is not derived from tRNA but obtained from methionine. 

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