Analyze the sexual cycle in Fungi.
a. The sexual cycle involves three steps: plasmogamy, karyogamy, and meiosis.
b. Plasmogamy is the fusion of two nuclei.
c. Karyogamy is the fusion of protoplasms.
d. In some fungi, plasmogamy is immediately followed by karyogamy to form a diploid cell.
e. In Ascomycetes and Basidiomycetes, an intervening dikaryotic stage (n+n) occurs between plasmogamy and karyogamy.
f. The dikaryon phase is when a cell contains two nuclei.
g. Meiosis in the zygote results in the formation of haploid spores.
