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प्रश्न
What is protonema?
उत्तर
Protonema and bulbils help in asexual reproduction. Sexual reproduction is oogamous. Alternation of generation is present. It is the first stage in the life cycle of a moss, developing directly from the spore. It consists of creeping, green, branched, and often filamentous structures.
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संबंधित प्रश्न
When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?
Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
Differentiate halpontic and diplontic life cycle.
Differentiate long and dwarf shoot.
Read the following statements and select the correct option.
Statement I: Algae follows haplontic life cycle in which the dominant phase is sporophyte.
Statement II: In many algae zygote divides by meiosis to form haploid spores.
Seeds of gymnosperms have three generations, that is :
Life cycle of gymnosperm is ______.
Most algal genera show haplontic life style. Name an alga which is
- Haplo-diplontic
- Diplontic
Comment on the lifecycle and nature of a fern prothallus.
With the help of a schematic diagram describe the haplo-diplontic life cycle pattern of a plant group.
