The number of nuclei present in each cell of secondary mycelium of Pleurotus sajor-caju is –

Correct option is A

Correct option: (a) Two
· Secondary mycelium (dikaryotic stage) in Basidiomycetes contains two nuclei per cell (n + n).
· Pleurotus sajor-caju is a typical Basidiomycete mushroom.
Other options:
· (b) Four – Not in secondary mycelium.
· (c) Three – No such stage in Basidiomycetes.
· (d) One – Characteristic of primary mycelium, not secondary.