Protonema and leafy stage
WebbA protonema (plural: protonemata) is a thread-like chain of cells that forms the earliest stage of development of the gametophyte (the haploid phase) in the life cycle of mosses. When a moss first grows from a … WebbHence, the correct answer is option B, protonema of moss and prothallus of Dryopteris are gametophytic. Note: In all sexually reproducing plants, an alternation of generation is present between the gametophytic and sporophytic stages. What is leafy stage class 11? The leafy stage is developed from the secondary protonema as a lateral bud.
Protonema and leafy stage
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WebbThe predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the protonema stage, which develops directly from a spore. It is a creeping, green, branched and frequently filamentous stage. The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud. Webb20 dec. 2024 · Find an answer to your question Protonema and leafy stage are predominant stage of the life cycle of. garimamohindhru7815 garimamohindhru7815 20.12.2024 Biology ... The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud. Advertisement Advertisement New questions in …
WebbGametophytic stage is the predominant stage of the moss lifecycle. The Gametophytic stage consists of two stages (i). Protenema stage – this is the first stage which develops directly from a spore. (ii). Leafy stage – this is the second stage which develops from the secondary protonema as a lateral bud. Webb20 aug. 2013 · Protonema is the gametophytic phase of mosses which directly develops from haploid spores. It is thalloid, small, inconspicious, often photosynthetic phase. The …
WebbThe predominant stage of the moss is the presence of gametophyte which consists of two stages the first stage is protonema and the second stage is leafy stage. Protonema … Webb8 jan. 2024 · Protonema develops at the initiation of the moss development after the spore germination. Then through different sequential developments stages, the protonema develops into leafy …
WebbThe moss Physcomitrella patens has two life cycles, filamentous protonema and leafy gametophore. A modified from of suppression subtractive hybridization (SSH), mirror orientation selection (MOS), was applied to screen genes differentially expressed
WebbWhich of the following is true regarding the classes of Bryophytes? 1. The thallus of mosses is dorsiventral and closely appressed to the surface 2. In the life cycle of liverworts, the predominant gametophytic stage is divided into two stages - the protonema and the leafy stage 3. The sporophyte in liverworts is more elaborate than in mosses 4. grady eifert purdueWebbProtonema stage 2. Leafy stage 3. Capsule of the sporophyte 4. Seta of the sporophyte Practice questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, NCERT Exemplar Questions and PDF Questions with answers, solutions, explanations, NCERT reference and difficulty level. grady edmondson attorneyWebbIn structure, the gametophyte is distinguished into protonema and leafy stage, forming the male and female sex organs at their tips. The female sex organs are known as archegonia. It functions by producing the ovum or female gamete and is protected by perichaetium modified leaves. The archegonia resemble the shape of a bottle container. grady electric kinston ncWebb13 juni 2024 · Click here 👆 to get an answer to your question ️ which is intermediate stage between protonema and leafy game. sohailanjum2024 sohailanjum2024 14.06.2024 … grady electric company cairo georgiaWebbIn mosses, gametophyte has two stages. The first stage is the protonema stage, which develops directly from a spore. It is a creeping, green, branched, and frequently … chimney sweeps salisbury mdWebb13 jan. 2024 · Reduction division in moss occurs similar to liverwort gametophyte which is a predominant stage hence haplodiplontic. It consists of 2 stages. The first stage is the protonema stage, which develops directly from. a spore. The second stage is the leafy stage which develops from secondary protonema as a lateral bud. This stage bears sex … grady electric georgiaWebb29 jan. 2024 · > The (d) Moss is a gametophyte which consists of two stages namely, protonema stage and leafy stage is also a correct option as the life cycle of a moss is the gametophyte containing two stages. The first stage is the protonema stage, which is developed directly from a spore. They are a creeping, green, branched and filamentous … grady electric company