A fungus with hyphae containing nuclei from different genomes, the nuclei do not fuse and are without sex organ but produces sexual spore belongs to

Step-by-step solution

The intermediate phase between two stages (plasmogamy and karyogamy) is known as dikaryophase. It gives rise to secondary mycelium. It has multiple septate hyphae. The septa have spores and hook shaped outgrowths. They are known as clamp connections. Septa mycelia multiply by formation of many spores including uredospores and chlamydospores. In basidia, karyogamy and meiosis occur which leads to the production of basidiospores.