NEET BIOLOGY

Detailed explanation-1: -Each basidium usually bears four haploid spores, called basidiospores (Figure B), produced by meiosis.

Detailed explanation-2: –These two different strains of mycelium fuse together to form a structure called a dikaryotic mycelium while this process is known as plasmogamy.-This again forms a complete organism and then again goes under meiosis. This completes the life cycle of the basidiomycetes. So, the correct answer is ‘All of these’.

Detailed explanation-3: -Sex and reproduction Agaricus completes its sexual cycle by producing basidiospores on the margins of the gills of the mushroom. Like almost all fungi in the Basidiomycete group, the organism exists primarily in a ‘dikaryon’ state where each cell has two nuclei, one from each parent after two haploid hyphae fuse.

Detailed explanation-4: -Basidiomycota are typically filamentous fungi composed of hyphae. Most species reproduce sexually with a club-shaped spore-bearing organ (basidium) that usually produces four sexual spores (basidiospores).