Question

find the odd one out with respect to growth (a)GA (b)eytoxinin (c)ABA (d)auxine​

Answer 1

Answer:

Auxin is a plant hormone that is produced in the tip of the stem that works in elongation.

Auxin helps the plant to move to the darker side, the cell grows larger than corresponding cells present on the lighter side of the plant.

So, the correct option is 'Auxin'.

Answer 2

Answer:

The answer is (c) ABA (Abscisic acid)

Explanation:

• Gibberellic acid (GA) - It helps in the elongation of the stem, and promotes bolting (sudden elongation in the internodes). It induces parthenocarpy and delays senescence. It also breaks seed dormancy.
• Cytokinins - This plant hormone helps in cytokinesis and rapid cell division. It overcomes apical dominance. It increases the lateral and adventitious shoot growth. It promotes nutrient mobilization in the plant and delays senescence.
• ABA (Abscisic acid) - It is a growth-inhibiting hormone. It accelerates the abscission of fruits and leaves and inhibits seed germination. It also promotes senescence and seed dormancy.
• Auxin - It is a plant hormone that helps in the cell elongation of stems and roots. It prevents the premature falling of the leaves, flowers, and fruits. It induces parthenocarpy and also flowering of the plant.
• ABA is the odd one out because the other three; GA, Cytokinins, and Auxin are growth-promoting hormones whereas the ABA is a growth inhibitor.

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