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Q. No.Cytokinin
Which of the following is not correct?
(1) Help to overcome apical dominance
(2) They promote nutrient mobilisation and helps in the delay of leaf senescence
(3) Lateral Shoot Growth
(4) Formation of Tap root
(1) Help to overcome apical dominance
(2) They promote nutrient mobilisation and helps in the delay of leaf senescence
(3) Lateral Shoot Growth
(4) Formation of Tap root
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following hormones is synthesised in large amounts by tissues undergoing senescence and ripening fruits?
(1) Ethylene
(2) ABA
(3) Auxins
(4) GA3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyInfluences of Ethylene in plants do not include
(1) Horizontal growth of seedlings
(2) Swelling of the axis
(3) Apical hook formation in dicot seedlings
(4) Lateral shoot growth
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEthylene does not perform
(1) Promotes senescence and abscission of plant organs especially of leaves and flowers
(2) Highly effective in fruit ripening
(3) Enhances the respiration rate during ripening of the fruits
(4) Overcome the apical dominance
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe rise in respiration rate of fruit is called
(1) Respiratory quotient
(2) Respiratory climactic
(3) Respiratory incision
(4) Respiratory succulence
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRespiratory climactic is due to
(1) Ethylene
(2) ABA
(3) GA
(4) Auxins
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe function which is not performed by Ethylene is
(1) Breaking of seed and bud dormancy
(2) Initiates germination in peanut seeds
(3) Improving the internode length of sugarcane
(4) Promotes rapid internode and petiole elongation in deep water rice plants
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySprouting of potato, helping the leaves or upper parts of the rice shoot to remain above water, promotes root growth and root hair formation and helping plants to increase their absorption surface. Which of the following hormones is involved in such physiological effects?
(1) Ethylene
(2) ABA
(3) GA
(4) Auxins
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEthylene is not involved in which of the following physiological effect?
(1) Initiate flowering and for synchronising fruit-set in pineapples
(2) Induces flowering in mango
(3) The most widely used PGR in agriculture as regulates so many physiological processes
(4) Help overcome the apical dominance
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe most widely used compound as source of Ethylene is
(1) Ethephon
(2) Etiope
(3) Ethyl Methyl carbon
(4) Epitope
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