Question

The type of life cycle in which the diploid gametophyte phase is dominant is called

• A. Haplontic
• B. Haplo-diplontic
• C. Diplontic
• D. Triplontic

Answer 1

The correct option is C

Diplontic

The diplontic life cycle is characterized by gametic meiosis and diploid sporophyte is dominant, photosynthetic and independent generation of the plant. The gametophyte generation is represented by the haploid gametes or few celled haploid gametophyte. Here, only the sporophyte is conspicuous and gametophyte is inconspicuous. Diplontic life cycle is exhibited by some green algae, brown algae and all seed bearing plants i.e. gymnosperms and angiosperms. In seeded plants pollen and ovaries contain male and female gametophytes, respectively.