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Question

In a fungal sexual cycle, plasmogamy occurs but the nuclei do not fuse immediately. What condition is formed before karyogamy?

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Explanation

In Ascomycetes and Basidiomycetes, plasmogamy may be followed by an intervening dikaryotic stage before karyogamy. Each cell then contains two haploid nuclei, represented as n + n, and the phase is called the dikaryophase.

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