• The life cycle of a pteridophyte comprises of two distinct phases or generations, each of which produces the other. One phase or generation, the sporophyte, is diploid (2n) and the dominant part of the life cycle. It is the part of the life cycle in which vascular tissue is developed.

May 2, 2020 The dominant generation in pteridophytes is. Alternation of Generation in Bryophytes Lecture, BSc Botany by Dr. Ruby Singh Parmar I Guru

(a) If both assertion and reason are true and reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is … The dominant, photosynthetic phase in such plants is the free-living gametophyte. This kind of life cycle is termed as haplontic. Many algae such as Volvox, Spirogyra and some species of Chlamydomonas represent this pattern (Figure 3.7 a). The dominant generation of bryophytes is (mosses, liverworts) because of there dominant gametophytes. All pteridophytes have a true alternation of generations, in which a dominant sporophyte generation produces spores through meiosis , and a free-living gametophyte generation forms gametes (egg and sperm) by mitosis .

In pteridophytes the dominant generation is

•In bryophytes, the gametophyte is the “dominant” generation, larger and more self sufficient than the sporophyte. •In pteridophytes, gymnosperms, and angiosperms, the sporophyte is the dominant generation. • The life cycle of a pteridophyte comprises of two distinct phases or generations, each of which produces the other. One phase or generation, the sporophyte, is diploid (2n) and the dominant part of the life cycle. It is the part of the life cycle in which vascular tissue is developed. In the Pteridophyte division both the sporophyteand gametophytegenerations live as free living plants. The sporophyte is much larger and longer lived than the gametophyte.

Answer:3 Alternation of Generations For sexually reproducing multicellular organisms In contrast, in flowering plants (angiosperms), the sporophyte is the dominant form.

ferns and not a novel invention, the gametophyte “generation” of seed plants. has been reduced In The pteridophytes of Mexico (pp. 686-692). Bronx dominant trees in Southeast Asian tropical rain forests. Am J Bot 92:.

Name three groups of pteridophytes.- Club Moses, Horsetails, Ferns 3. What significance do the remains of Carboniferous pteridophytes have today?

the dominant form. Any plant of the division Pteridophyta, of simple vascular plants that reproduce via spores rather than seeds and that alternate generations

14. The group of plants where which the first to become Sporophytic The dominant generation of a moss is the gametophyte whereas the fern sporophyte generation is dominant; Mosses have separate male and female plants gametophytes, ferns are homosporous with monoecious prothallus; Bryophytes have rhizoids while pteridophytes have hyphae; Ferns can grow bigger and can grow in less damp areas •In bryophytes, the gametophyte is the “dominant” generation, larger and more self sufficient than the sporophyte. •In pteridophytes, gymnosperms, and angiosperms, the sporophyte is the dominant generation. •For example, the fern plant that we typically see is the diploid sporophyte, while the Which generation of a pteridophyte is dominant?- Sporophyte 2. Name three groups of pteridophytes.- Club Moses, Horsetails, Ferns 3.

In pteridophytes the dominant generation is

1. Pteridophytes have true xylem and phloem/vascularity due to the innovation of lignin which is not present in mosses. Although some bryophytes also have conductive tissue such as hydroids and leptoids, these are not lignified and evolved indepen Pteridophytes show a true Alternation of Generations: There is a systematic feature of alternation of generations in pteridophytes. At the time of sporogenesis (the process of the formation of spore), the reduction division (meiosis) takes place and the haploid spores are formed. This represents the first stage of the gametophyte generation.
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- Sporophyte does not remain attached to the gametophyte. gametophyte is dominant in bryophytes whereas the sporophyte is dominant in pteridophytes. Pteridophytes show a true alternation of generations.

photosynthetic and independent, whereas sporophytic phase is represented by the zygote. Pteridophytes Pteridophytes include fern plants. Gymnosperms Gymnosperms are seed-bearing plants and include cycads and conifers. Dominant generation Bryophytes Gametophyte is the dominant generation of Bryophytes.
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In the Pteridophyte division both the sporophyteand gametophytegenerations live as free living plants. The sporophyte is much larger and longer lived than the gametophyte. It is the dominant generation and what we recongnize as ferns, clubmosses, et cetera.

•In pteridophytes, gymnosperms, and angiosperms, the sporophyte is the dominant generation. • The life cycle of a pteridophyte comprises of two distinct phases or generations, each of which produces the other. One phase or generation, the sporophyte, is diploid (2n) and the dominant part of the life cycle.

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gametophyte is dominant in bryophytes whereas the sporophyte is dominant in pteridophytes.

Sporophyte generation is main and dominant in pteridophytes.Strasburger (1894) discovered the process meiosis, the actual phenomenon responsible for bringing about alternation of generation.