Gametophytic plant body
WebMar 16, 2024 · The gametophyte is haploid and multicellular. It produces gametes that fertilize and form a zygote. Cell division in the zygote leads to the diploid sporophyte … WebThe answer is: C. In pteridophytes, the gametophytic generation is commonly called the prothallus. The prothallus is a small, flat, heart-shaped, or kidney-shaped structure that is typically 1-2 cm in size. It develops from the spore and produces the male and female gametes that fuse to form the zygote, which develops into the sporophytic ...
Gametophytic plant body
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WebJan 13, 2024 · Alternation of generations between a sporophytic and gametophytic developmental stage is a feature common to all land plants. This review will discuss the evolutionary origins of these two developmental programs from unicellular eukaryotic progenitors establishing the ability to switch between haploid and diploid states. We will … WebApr 25, 2000 · Diagram showing the different evolutionary pathways (arrows) taken by plant sporophyte (Upper) and gametophyte (Lower) bodies.Earliest land plant sporophytes …
WebThe main multicellular plant body in case of bryophyte is gametophytic that is haploid. It is large, visible, photosynthetic and an independent structure that grows on a suitable substratum.The gametophytic plant body of the bryophytes bears male and female sexual organs termed as antheridia and archegonia, respectively. WebMar 8, 2016 · The main plant body of the bryophyte is haploid. It produces gametes, hence is called a gametophyte. The sex organs in bryophytes are multicellular. The male sex organ is called antheridium. They produce …
WebJan 28, 2024 · Assertion : Gametophyte produces gametes whereas sporophyte produces spores. Reason : In bryophytes, sporophytic plant body dominates over gametophytic plant body. (a) If both A and R are true and R is the correct explanation of A (b) If both A and R are true but R is not the correct explanation of A (c) If A is true but R … WebDec 1, 2003 · In charophytes, the first cell division of the zygote is meiosis, and their plant body is gametophytic. A sister group of the charophyte-land plant clade is the zygnematalean green algae, which have a life cycle similar to that of charophytes (Graham and Wilcox 2000, p. 503). These features suggest that the common ancestor of …
WebMar 7, 2024 · An intriguing question is whether the TDIF/CLE peptides in bryophytes control the meristem activity in the gametophytic body. We here investigated the role for TDIF/CLE peptide in the liverwort Marchantia ... One major difference in the body plans of these organisms is that the land plant body is built from meristems with 3 or more cutting ...
WebApr 28, 2024 · Gametophyte Definition. Gametophytes are the stage which produces sex cells in plants and algae that undergo alternation of generations. Among land plants, these sex cells may be referred to as … know27A gametophyte is one of the two alternating multicellular phases in the life cycles of plants and algae. It is a haploid multicellular organism that develops from a haploid spore that has one set of chromosomes. The gametophyte is the sexual phase in the life cycle of plants and algae. It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote which … redbleckwaitWebThe plant body of Selaginella is differentiated into well developed roots, stem and leaves. Besides, some species also have rhizophore (Fig.7.46A). Hieronymus (1902) divided the … redblink incWebbranching structure (protonema) and the mature gametophytic plant body is differentiated into “stem-like” and “leaf-like” parts. In addition, the sporangium (capsule), contains a highly complex series of tooth-like structures that facilitate the dispersal of its spores. (see figure below) circle parts identified as you precede through ... redblade banner infinite powerWebgametophytic plant body is a leafy stem called gametophore but in liverworts and hornworts the plant body is usually a thallus, that is ribbon-like or heart-shaped and bilaterally symmetrical. The body is without roots, stems and leaves. The plants are anchored to soil by rhizoids, which are unicellular in liverworts and hornworts and know4carWebThe mature gametophyte bears male reproductive organs called antheridia and female reproductive organs called archegonia. The antheridia have a club-shaped body and a stalk. They produce flagellated male gametes called antherozoids or sperms. The archegonia are flask-shaped with a well-defined venter and neck. know2good serverWebThe gametophytic generation in pteridophytes is commonly called ___________. A Thallus B Plant body C Prothallus D Protonema Medium Solution Verified by Toppr Correct option is C) In ferns, gametophytic generation is represented by heart-shaped prothallus. Solve any question of Plant Kingdom with:- Patterns of problems > Was this answer helpful? 0 redblob pathfinding