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Question

What is a dikaryon?


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Solution

Dikaryon:

  1. The fusion of two haploid cells does not always result in diploid cells in some fungi (2n).
  2. Instead, an intermediate dikaryotic stage (n + n, i.e., two nuclei per cell) arises.
  3. When this happens, two cells' nuclei couple up and cohabit without fusing.
  4. This state is known as a dikaryon, and the phase is known as the fungal dikaryophase.
  5. Example - Ascomycetes and Basidiomycetes.

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