1. Tardigrade
  2. Question
  3. Biology
  4. In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of

AIPMTAIPMT 1993Plant Kingdom

Solution:

In Ulothrix/Spirogyra reduction division (meiosis) occurs at the time of zygospore formation. Plant body of Ulothrix and Spirogyra, is gametophytic (haploid), they produce zoogametes (n) which fuses to form zygosporic (2n) diploid, which is a resting spore. Onset of favourable condition zygospore undergoes reductional division, or meiosis to produce zoo- meiospores.