3
Question
The plant hormone that promote cell division
The plant hormone that promote cell division
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Solution
The correct option is C Cytokinins
Abscisic acid is a plant growth hormone involved in seed dormancy and responses of plants to stress. This makes option A incorrect. Auxins promote the formation of lateral and adventitious roots, regulate the flower bud development and induce vascular differentiation. This makes option B incorrect. Gibberellins are responsible for stem elongation, breaking seed dormancy, mobilization of endosperm reserves as well as regulate sex determination, flower initiation and fruit set. This makes option C incorrect. Cytokinins are the plant growth hormones that regulate the cell division in root and shoot of the plant both in vivo and in vitro. They do so by regulating the controls that govern the transition of the cell from one stage of the cell cycle to the next one. This makes option D correct.
Abscisic acid is a plant growth hormone involved in seed dormancy and responses of plants to stress. This makes option A incorrect. Auxins promote the formation of lateral and adventitious roots, regulate the flower bud development and induce vascular differentiation. This makes option B incorrect. Gibberellins are responsible for stem elongation, breaking seed dormancy, mobilization of endosperm reserves as well as regulate sex determination, flower initiation and fruit set. This makes option C incorrect. Cytokinins are the plant growth hormones that regulate the cell division in root and shoot of the plant both in vivo and in vitro. They do so by regulating the controls that govern the transition of the cell from one stage of the cell cycle to the next one. This makes option D correct.
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