Question

The type of life-cycle in which there is no free-living sporophyte and the dominant, photosynthetic phase in such plants is the free-living gametophyte. We are talking about

Answer 1

Haplontic life cycle

• The gametophytic plant body is haploid which produces haploid gametes. These gametes fuse to produce diploid zygotes.
• It germinates to produce a diploid sporophytic plant body which produces haploid spores. The spores germinate to produce haploid gametophytic plant bodies.
• These two phases of gametophytes and sporophytes alternate with each other in the life cycle of the plant.
• For example, algae like Volvox and Chlamydomonas have such a life cycle where the gametophyte is predominant and free-living and the sporophytic phase is not free living.

Final answer
$a)$ Haplontic life cycle shown in Volvox and some species of Chlamydomonas