Botany - Plant Kingdom Question with Solution | TestHub
Normally algae show a haplontic life cycle.PolysiphoniaandFucusare exceptions to this rule. The correct option depicting their classes and life cycles is
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The diplontic life cycle is a cycle in which the diploid sporophyte is the dominant, photosynthetic, independent phase of the plant. The gametophytic phase is represented by the single to the few-celled haploid gametophyte. It is seen in all seed-bearing plants gymnosperms and angiosperms. It is also seen in the brown algaFucus.
Haplo-diplontic life cycle is a cycle in which a dominant, independent, photosynthetic, thalloid, or erect phase is represented by a haploid gametophyte, and it alternates with the short-lived, multicellular sporophyte totally or partially dependent on the gametophyte. This is seen in bryophytes, in the brown algaEctocarpusand the red algaePolysiphonia
