Question

Given below are some statements about plant growth regulators.
A. All Gas are acidic in nature.
B. Auxins are antagonists to Gas.
C. Zeatin was isolated from coconut milk.
D. Ethylene induces flowering in Mango.
E. Abscisic acid induces parthenocarpy.
Choose the correct set of statements from the option given below:

• A. A, C, D
• B. B, E
• C. A, B, C
• D. B, D, E

Answer 1

The Correct Option is A

Analysis of statements:
A. All GAs are acidic: Gibberellins (GAs) are acidic plant hormones. True.
B. Auxins are antagonists to GAs: Auxins and gibberellins generally cooperate to promote growth; they are not antagonists. False.
C. Zeatin was isolated from coconut milk: Zeatin, a cytokinin, was first isolated from immature corn kernels (Zea mays), not coconut milk, though coconut milk contains other cytokinins. False.
D. Ethylene induces flowering in Mango: Ethylene, a gaseous plant hormone, promotes flowering in plants like mango. True.
E. Abscisic acid induces parthenocarpy: Abscisic acid (ABA) typically inhibits growth and is not linked to parthenocarpy (fruit development without fertilization). Auxins and gibberellins are associated with parthenocarpy. False.