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Question
Most distinct type of alternation of generations is demonstrated by
Most distinct type of alternation of generations is demonstrated by
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Solution
The correct option is B Ferns
In Fern, the antheridia and archegonia are developed on prothallus. The antherozoid and archegonia fuse to form diploid zygote, which is the beginning of the sporophytic stage. The sporophyte (2n) gives rise to gametophyte (n), i.e., prothallus and again by the process of union of the gametes the sporophytic stage is developed. Thus, it may be said that fern exhibits an alternation of haploid (gametophytic) and diploid (sporophytic) generations. However, unlike Bryophytes, the fern plant is the diploid sporophyte.
In Fern, the antheridia and archegonia are developed on prothallus. The antherozoid and archegonia fuse to form diploid zygote, which is the beginning of the sporophytic stage. The sporophyte (2n) gives rise to gametophyte (n), i.e., prothallus and again by the process of union of the gametes the sporophytic stage is developed. Thus, it may be said that fern exhibits an alternation of haploid (gametophytic) and diploid (sporophytic) generations. However, unlike Bryophytes, the fern plant is the diploid sporophyte.
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