In which of the following algae is a haplodip | vedclass

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Question

(A) haplodiplontic life cycle involves an alternation between a multicellular haploid $(n)$ gametophyte and a multicellular diploid $(2n)$ sporophyte.

Vedclass · Accepted Answer

Polysiphonia

Vedclass · Answer

(A) haplodiplontic life cycle involves an alternation between a multicellular haploid $(n)$ gametophyte and a multicellular diploid $(2n)$ sporophyte. Among the algae,this pattern is characteristic of Ectocarpus,Polysiphonia,and Kelps. $Volvox$ and $Spirogyra$ exhibit a haplontic life cycle,where the dominant phase is the haploid gametophyte and the zygote is the only diploid stage. Some species of $Chlamydomonas$ also exhibit a haplontic life cycle. Therefore,$Polysiphonia$ is the correct answer.

In which of the following algae is a haplodiplontic life cycle observed?

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