Which of the following stages is $NOT$ part of the sexual cycle in fungi?

Which of the following fungi is unicellular?

In yeast, the cell wall contains:

In ectomycorrhiza,the fungus generally belongs to:

Which of the following statement$(s)$ is/are correct about ascomycetes?
$(i)$ Neurospora,which is used in biochemical and genetic work is a member of this class.
$(ii)$ They are mostly multicellular,e.g.,Yeast,or rarely unicellular,e.g.,Penicillium.
$(iii)$ They are saprophytic,decomposers,parasitic or coprophilous.
$(iv)$ Some examples are Aspergillus,Claviceps and Neurospora.

What is absent in yeast?