Question

Match List I with List II

Choose the correct answer from the options given below:

• A. A (I), B (IV), C (III), D (II)
• B. A (I), B (II), C (III), D (IV)
• C. A (III), B (I), C (II), D (IV)
• D. A (IV), B (III), C (II), D (I)

Hint:

Etiolation = Hormonal disturbance; Chlorosis = Photosynthetic disturbance; Wilting = Water transport failure; Hyperplasia = Abnormal cell division.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Disease symptoms in plants result from specific physiological and developmental dysfunctions.

Step 2: Detailed Explanation:
Matching symptoms with their pathophysiological mechanisms:
1. Etiolation (A) $\to$ Excessive stem elongation with pale yellow color due to disturbed hormonal/auxin-gibberellin regulation and absence of light (III).
2. Chlorosis (B) $\to$ Yellowing from chlorophyll degradation or synthesis failure resulting in disturbed photosynthesis (I).
3. Wilting (C) $\to$ Loss of turgor pressure caused by vascular occlusions and disturbed water transport in xylem (II).
4. Hyperplasia (D) $\to$ Abnormal proliferation and accelerated excessive cell division forming galls or tumefactions (IV).

Step 3: Final Answer:
Matching summary: A $\to$ III, B $\to$ I, C $\to$ II, D $\to$ IV.