Which statement about the dikaryon stage of the life cycle is true?
A) The dikaryon has swimming gametes with flagella.
B) The dikaryon is the only true diploid structure.
C) Meiosis occurs in the monokaryotic hyphae of the dikaryon.
D) The dikaryon is effectively neither diploid nor haploid.
E) Fungi with a dikaryon stage lack a true zygote stage.

Question

Quizplus · Accepted Answer

The dikaryon stage is characterized by two nuclei in a single cell, each originating from a different haploid parent. Therefore, the dikaryon is effectively neither diploid nor haploid. Meiosis occurs in the basidia of the dikaryon stage, not in the monokaryotic hyphae. Some fungi with a dikaryon stage do have a true zygote stage. Some fungi with a dikaryon stage have swimming gametes with flagella, but it is not a defining feature of the dikaryon stage.

Which Statement About the Dikaryon Stage of the Life Cycle