Question

Which stage is the dominant stage in gymnosperms?

Answer 1

Tha dominate stage in gymnosperms is the "sporophyte stage". Plants such as vascular plants, which are non-flowering, which can reproduce by cones would be an example of the gymnosperm. These non-flowering vascular plants will reproduce sexually, like human.

Answer 2

Gymnosperm is  kind of a trachaeophyte, among angiosperms which are flower-bearing plants. Tracheophytes or generally ascular plants has the dominant stage on diploid generation in which the sporophyte comprises the main plant.