The true nucleus is absent in:

The true nucleus is absent in:
  1. Anabaena
  2. Mucor
  3. Claviceps
  4. Volvox

Solution

Anabaena is a prokaryotic organism belonging to the cyanobacteria group and has cells that do not have any organelles as well as the nucleus except for ribosomes. These are autotrophs with photosynthesis activity and has bacteriochlorophyll. 

Asked in: NEET 2015 (Phase 1)

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