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Question

What is common between Pteris and Sphagnum.

A
Dominent haploid stage
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B
Vascular diploid stage
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C
Dependent diploid stage
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D
Haploid independent stage.
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Solution

The correct option is C Dependent diploid stage
Both shagnum and ptris have dependent diploid stage. Shagnum is Bryophyta and pteris is pteridophyta. So, Bryophytes and Pteridophytes show an intermediate condition called the haplo-diplontic life cycle, where phases are multicellular. But the dominant phase differs. In Bryophytes, the dominant phase is the gametophyte and in Pteridophytes, it is the sporophyte.

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