Q1. [1]
Select the option having correct matching of the organism given in Column I with the mode of reproduction in Column II :
Column I: P Leishmania, Q Spirogyra, R Planaria, S Plasmodium
Column II: 1. Regeneration, 2. Multiple Fission, 3. Binary Fission, 4. Fragmentation, 5. Budding
- (A) P-4, Q-2, R-1, S-3
- (B) P-3, Q-4, R-5, S-2
- (C) P-3, Q-4, R-1, S-2
- (D) P-4, Q-3, R-2, S-1
Previously asked in CBSE board exam
2025 31/6/1 Q10
Generated by claude-sonnet-4-6 · 2026-06-15 06:45 · grounding rag
Model Answer
(C) P-3, Q-4, R-1, S-2
Leishmania – Binary Fission (3); Spirogyra – Fragmentation (4); Planaria – Regeneration (1); Plasmodium – Multiple Fission (2).
Explanation
- Leishmania: Binary fission in a definite orientation (it has a whip-like flagellum at one end).
- Spirogyra: Fragmentation – breaks into pieces upon maturation, each growing into a new individual.
- Planaria: Regeneration – a classic example; cut pieces regrow into whole organisms.
- Plasmodium: Multiple fission – divides into many daughter cells simultaneously (malarial parasite).
Examiners commonly set this type of matching MCQ; knowing which organism uses which specific mode is essential.
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