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

Let’s analyze each statement:
A. All GAs are acidic: Gibberellins (GAs) are a class of acidic plant hormones. This statement is true.
B. Auxins are antagonists to GAs: Auxins and gibberellins often work synergistically to promote growth, so they are not antagonists. This statement is false.
C. Zeatin was isolated from coconut milk: Zeatin is a type of cytokinin that was first isolated from immature corn kernels (Zea mays), not coconut milk. However, coconut milk does contain other cytokinins. This statement is false.
D. Ethylene induces flowering in Mango: Ethylene is a gaseous plant hormone that promotes flowering in some plants, including mango. This statement is true.
E. Abscisic acid induces parthenocarpy: Abscisic acid (ABA) generally inhibits growth and is not associated with parthenocarpy (fruit development without fertilization). Auxins and gibberellins are involved in parthenocarpy. This statement is false.