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Gametophytic generation is dominant in
  • a)
    Angiosperms
  • b)
    Gymnosperms
  • c)
    Pteridophyta
  • d)
    Bryophyta
Correct answer is option 'D'. Can you explain this answer?
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Gametophytic generation is dominant ina)Angiospermsb)Gymnospermsc)Pter...
Gametophytes are the stage which produces sex cells in plants and algae that undergo alternation of generations. Instead of using meiosis to produce sex cells, they use meiosis to produce spores – which then undergo mitosis to grow into whole new haploid organisms, a.k.a. gametophytes! ...
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Gametophytic generation is dominant ina)Angiospermsb)Gymnospermsc)Pter...


Explanation:

Bryophyta

- The gametophytic generation is dominant in Bryophyta, which includes mosses, liverworts, and hornworts.
- In Bryophytes, the gametophyte is the dominant and independent phase of the life cycle, while the sporophyte is dependent on the gametophyte for its nutrition.
- The gametophyte produces gametes (eggs and sperm) which fuse to form a zygote, leading to the development of a sporophyte.
- The sporophyte is usually smaller and short-lived compared to the gametophyte in Bryophytes.
- Bryophytes are non-vascular plants, meaning they lack specialized tissues for transporting water and nutrients. This is one of the reasons why the gametophyte is the dominant phase in their life cycle.

Therefore, the correct answer to the question is option D) Bryophyta.
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Gametophyte is a dominant phase in the life cycle of a bryophyte. It is more conspicuous, long living, independent, green and freely branched whereas, the sporophytic phase is short lived and dependent upon the gametophyte. The main plant body is haploid and bears sex organs i.e., antheridium and archegonium. Antheridium produces a large number of flagellated male gametes called antherozoids and archegonium is flask shaped with tubular neck and swollen venter. The gametophytic plant body of bryophytes is thalloid in liverworts whereas foliose in mosses. In liverworts, the thallus is differentiated into a dorsal photosynthetic and ventral storage region. In mosses, the gametophyte has two growth stages- protonema stage and leafy stage or gametophore.Q. Plants which produce spores and embryo but lack vascular tissue and seeds are

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Gametophytic generation is dominant ina)Angiospermsb)Gymnospermsc)Pteridophytad)BryophytaCorrect answer is option 'D'. Can you explain this answer?
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