Question

Some fungus species that produce sexually have no clear sexes (no males and no females) and the gametes are all generally the same size. What term below best describes the species?

Answer 1

Fungal species that reproduce sexually with morphologically similar gametes are described as isogamous. This form of reproduction allows fungi to adapt and vary genetically without defined male or female sexes.

Step-by-step explanation:

The term that best describes fungal species that reproduce sexually without clear sexes, and where gametes are all generally the same size, is isogamous. Unlike the typical male and female gametes that differ in size (anisogamy), isogamous organisms produce gametes that are morphologically similar. This is characteristic of certain fungal groups where gametes do not have distinguishing features such as in some zygomycetes or when the sexual organ is too small to be distinguished. Sexual reproduction in fungi can still occur through the fusion of these isogamous gametes, leading to genetic variation and adaptation in these species.