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Question: Answered & Verified by Expert
In Spirogyra sometimes a ladder like structure is present due to :
BiologyReproduction in OrganismsJIPMERJIPMER 2004
Options:
  • A vegetative reproduction
  • B asexual reproduction
  • C lateral conjugation
  • D scalariform conjugation
Solution:
2262 Upvotes Verified Answer
The correct answer is: scalariform conjugation
Sexual reproduction in Spirogyra takes place by conjugation. Scalariform conjugation occurs between the cells belonging to different filaments. Hence, these species are heterothallic. Lateral conjugation is primitive than scalariform conjugation.

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