Which of the following algae shows haplo-diplontic life cycle?

Volvox

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Polysiphonia

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Fucus

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None of the above

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Solution

The correct option is B Polysiphonia
In haplo-diplontic life cycle, the haploid gametophytic as well as the diploid sporophytic phases exhibit an intermediate condition. This type is seen in Polysiphonia.

Volvox have haplontic life cycle in which the haploid gametophytic phase is dominant over diploid sporophytic phase.

Fucus shows diplontic life cycle where the diploid sporophytic phase is dominant over haploid gametophytic phase.

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Comparable to Angiosperms, which of the following algae exhibits diplontic life cycle?

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