Q1. [1]
Spirogyra, despite being a multi-cellular organism, still shows a simple reproductive method. Select the correct option with regard to reproduction in Spirogyra :
- (A) Asexual reproduction by division of cells into two cells
- (B) Sexual reproduction by division of cells into many cells
- (C) Asexual reproduction by breaking up of Spirogyra filaments into smaller parts
- (D) Sexual reproduction by the formation of gametes after meiosis of cells of filaments followed by fusion of male and female gametes
Previously asked in CBSE board exam
2026 31/2/1 Q3
Generated by claude-sonnet-4-6 · 2026-06-15 06:42 · grounding rag
Model Answer
(C) Asexual reproduction by breaking up of Spirogyra filaments into smaller parts
Explanation
The passage explicitly states: "Spirogyra simply breaks up into smaller pieces upon maturation. These pieces or fragments grow into new individuals." This is fragmentation — an asexual method. Options A and B are incorrect descriptions; Option D describes sexual reproduction with meiosis, which is not mentioned for Spirogyra here.
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