In ferns, meiosis takes place at the time of
Correct answer: A. Spore formation
- A. Spore formation
- B. Spore germination
- C. Gamete formation
- D. Antheridia and archegonia formation.
Explanation
(a) : A fern plant body is sporophytic (2n) and is differentiated into roots, stems, and leaves. On the ventral surface of leaves, sporangia are borne in a group called sori. Inside the sporangium are present the spores which are formed by reduction division. Thus the spores produced are haploid in nature and germinate to produce a prothallus that represents the gametophytic generation. Antheridium and archegonium are borne on this prothallus. Thus meiosis takes place at the stage of spore formation.
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About Kingdom Plantae
Plants are multicellular, photosynthetic eukaryotes with cellulose cell walls, chloroplasts and large vacuoles. Coverage includes alternation of generations, vascular and non-vascular plants, seedless and seed-producing groups, gymnosperms and angiosperms, and the distinction between monocot and dicot features.
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