Diplontic Life Cycle

Pteridophytes|Haplodiplontic Life Cycle|General Characteristics|Plant Body|Heterospore And Homospores|Psilopsida|Lycopsida|Sphenopsida|Pteropsida|Economic Importance|Diplontic Life Cycle|General Characteristics - Plant Body|Sporophyte - Reproductives Structures|Male And Female gametophyte |Reproduction|Classification|Classification Of Angiosperms

I. In Rhodophyceae, food is stored as mannitol and laminarin II. Ovules of Gymnosperms are not enclosed by ovary wall III. Salvinia is heterosporous IV. In diplontic life cycle, free living gametophyte represents dominant phase Of the above statements :

Of the below statements: (I) In rhodophyceae, food is stored as mannitol and laminarin (II) Oules of gymnosperms are not enclosed by ovary wall (III) Salvinia is heterosporous (IV) In diplontic life cycle free living gametophyte represents dominant phase.

I. In Rhodophyceae, food is stored as mannitol and laminarin II. Ovules of Gymnosperms are not enclosed by ovary wall III. Salvinia is heterosporous IV. In diplontic life cycle, free living gametophyte represents dominant phase Of the above statements :

Draw labelled diagram of haplontic , diplontic and haplo-diplonatic life cycle of plants, with examples.

Which of the following pairs of organisms are correctly matched with their description ? 1. Pteridophytes which are heterosporous : Selaginella , salvinia 2. Gymnosperms with branched stem : Pinus , Cedrus 3. Algae with haplo - diplontic life cycle : Ectocarpus, polysiphonia 4. Bryophytes with protonema stage : polytrichum , sphagnum

Which of the following pairs of organisms are correctly matched with their description ? 1. Pteridophytes which are heterosporous : Selaginella , salvinia 2. Gymnosperms with branched stem : Pinus , Cedrus 3. Algae with haplo - diplontic life cycle : Ectocarpus, polysiphonia 4. Bryophytes with protonema stage : polytrichum , sphagnum

Choose the correct option fron following statements I. During embryogenesis, zygate undergoes mitotic cell division. II. In organisms with diplontic life cycle, zygote divides by meiotic cell division. III. The pericarp (fruit wall) develop from integument of ovule, after fertillzation. IV. In brinjal, sepals remained attached to fruit even after fertilization.