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Question #47558
The Question
A plant physiologist isolates a phytohormone 'X' that successfully induces bolting in rosette plants like cabbage. When 'X' is exogenously applied to the emasculated flowers of a tomato plant, it triggers the development of fruit 'Y'. Which of the following statements is INCORRECT regarding this physiological phenomenon?
Options
- A.
Hormone 'X' is an acidic, terpene-derived growth promoter that can also be used to delay senescence in intact fruits.
- B.
Fruit 'Y' is a parthenocarpic fruit, demonstrating that ovarian enlargement can be developmentally uncoupled from syngamy and triple fusion.
- C.
The development of fruit 'Y' involves the formation of viable, genetically identical maternal seeds via apomixis.
- D.
The exogenous application of 'X' substitutes for the endogenous hormonal signals that are normally provided by developing seeds.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Regulatory_Failure
Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.
Concepts Behind This Question
Abscisic Acid|Gibberellins|Morphogenesis
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: The fundamental distinction between Parthenocarpy (development of a seedless fruit from an unfertilized ovary) and Apomixis (development of a seed without fertilization).
The trap relies on students conflating the hormonal bypass of fertilization for fruit growth with the asexual production of seeds, failing to recognize that artificially induced parthenocarpy yields zero seeds.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Plant Kingdom - Class 11 |
| Concept | Sexual Reproduction Variations |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |