Question

Which of the following is the correct sequence of three steps in the sexual cycle of fungi?

• A. Karyogamy, plasmogamy and meiosis
• B. Meiosis, plasmogamy and karyogamy
• C. Plasmogamy, karyogamy and meiosis
• D. Meiosis, karyogamy and plasmogamy

Answer 1

Answer: (C)

Plasmogamy, karyogamy and meiosis

The sexual cycle of fungi involves the following three steps:

1. The protoplasm of two motile or non-motile gametes fuses by the process of plasmogamy. It is fusion of two haploid cells without nuclear fusion.

2. Karyogamy involves fusion of nuclei of the two gametes.

3. Meiosis in zygote results in haploid spores.