Multiple choice

Fertilization is internal in spirogyra. Where would you get zygospores if 3 filaments are conjugating by scalariform conjugation?

  1. Lateral filaments

  2. Central filaments

  3. Central filament and both lateral filaments

  4. Either central or lateral filaments
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Scalariform conjugation requires association of two different filaments lined side by side, either partially or throughout their length. Zygospores are present either near the centre or lateral filaments if 3 filaments are conjugating by scalariform conjugation.

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