Question

Auxins promote the following.

• A. Shedding of fruits
• B. Bud dormancy
• C. Leaf fall
• D. Apical dominance

Answer 1

The correct option is D

Apical dominance

The correct option is D:

Explanation of the correct answer:

1. Auxin is a plant hormone that helps in cell elongation and cell differentiation.
2. Due to the presence of auxins plant show apical dominance.
3. Apical dominance refers to the suppression of the growth of the lateral or axillary buds due to the growth of apical buds.

Explanation of the incorrect option:

Option A:

Shedding of fruits (natural falling of fruits) is promoted by Ethylene and Abscisic acid.

(Option B):

Absisic acid prolongs the dormancy of buds and seeds.

(Option C):

Abscisic acid and Ethylene induce senescence and abscission in leaves (natural falling of leaves).