Question

What is the heterokaryotic stage?

Answer 1

Heterokaryotic stage:

1. The fungi is a unique kingdom which comprises heterotrophic organisms.
2. The sexual cycle in fungi takes place in following three steps:
   1. Fusion of protoplasms between two motile or non-motile gametes called plasmogamy.
   2. Fusion of two nuclei called karyogamy.
   3. Meiosis in zygote results in formation of haploid spores.
3. The heterokaryotic stage occurs in some fungi after plasmogamy, a cell contains two genetically different nuclei.
4. It occurs due to delayed karyogamy.