In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result:
Correct answer: C. Self fertilization is prevented
- A. There is high degree of sterility
- B. One can conclude that the plant is apomictic
- C. Self fertilization is prevented
- D. There is no change in success rate of fertilization.
Explanation
(c) : In the prothallus of vascular cryptogams the antherozoids and eggs mature at different times. The spores on germination give rise to the prothallus. The antherozoids are biflagellated or multiflagellated. The egg is produced inside the venter, water is essential for fertilization and it is always cross fertilization. Self-fertilization is prevented.
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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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