NEET Biology question

BiologyPlant Growth and DevelopmentNEET

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

Answer: (A)

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

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-114477