NEET Biology question
Read the given statements and identify the plant hormones X, Y and Z. (i) Hormone Y induces flowering in mango and also promotes rapid internode/petiole elongation in deep water rice plants, hence helping leaves or the upper part of the shoot to remain above water (ii) Hormone X promotes apical dominance (iii) Hormone Z inhibits seed germination, increases the tolerance of plants to various stresses, and plays an important role in seed development, maturation and dormancy
Solution
Statement (ii) directly identifies X as auxin (promotes apical dominance). Statement (i) describes ethylene's role in flowering induction in mango and in promoting internode/petiole elongation in deepwater rice to escape
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