BIOLOGY
HORMONES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Auxins and Cytokinins
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Gibberellins and Cytokinins
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Either A or B
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None of the above
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Detailed explanation-1: -Auxin and cytokinin are the two growth hormones that favour cell division and differentiation. Auxin promotes root development, cell division and differentiation of xylem. Cytokinins promote cytokinesis which means a division of cells and are generally secreted in the areas where rapid cell division occurs.
Detailed explanation-2: -The plant hormones auxin and cytokinin are critical for plant regeneration in tissue culture, with cytokinin playing an instrumental role in shoot organogenesis.
Detailed explanation-3: -Auxin promotes cell division and meristem maintenance and also plays an important role in the establishment of cellular patterning. Plant development thus integrates the regulation of cell proliferation and growth with further cell expansion and differentiation.
Detailed explanation-4: -Cytokinins are plant hormones which promotes cytokinesis or cell division. It also helps in opening of stomata, delaying ageing in leaves, etc.
Detailed explanation-5: -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.