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The dominant stage in the life cycle of a fern is the


Question

The dominant stage in the life cycle of a fern is the

Options

A) antheridium

B) gametophyte

C) prothallus

D) sporophyte


The correct answer is D.

Explanation:

First, all plants undergo an alternation of generations, between a haploid gametophyte stage and a diploid sporophyte stage. In the most primitive plants, like mosses, the gametophyte is dominant (i.e. it's big and green). In higher plants like ferns and fern allies, the sporophyte stage is dominant.

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Discussion (2)

  • First, all plants undergo an alternation of generations, between a haploid gametophyte stage and a diploid sporophyte stage. In the most primitive plants, like mosses, the gametophyte is dominant (i.e. it's big and green). In higher plants like ferns and fern allies, the sporophyte stage is dominant.

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  • the dominant phase in pteridophytes (the group ferns belong to) is sporophyte.