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प्रश्न
Protonema is ______.
विकल्प
Haploid and is found in mosses
Diploid and is found in liverworts
Diploid and is found in pteridophytes
Haploid and is found in pteridophytes
उत्तर
Protonema is haploid and is found in mosses.
Explanation:
The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the protonema stage (juvenile stage) and the second stage is the leafy stage. Moss protonema resembles to multicellular green algae in structure. Moss plant develops from protonema.
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संबंधित प्रश्न
Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
Mention the ploidy of the following:
Zygote of a fern
Explain briefly the following term with a suitable example:
Antheridium
Explain briefly the following term with a suitable example:
Diplontic
Differentiate between the following:
Liverworts and Moss
Which is NOT a character of bryophytes?
Which of the following play an important role in plant succession on bare rocks or soil?
Amphibians of the plant kingdom are
The plant body in higher plants is well differentiated and well developed. Roots are the organs used for the purpose of absorption. What is the equivalent of roots in the less developed lower plants?
Draw labelled diagrams of
- Female and male thallus of a liverwort.
- Gametophyte and sporophyte of Funaria.
- Alternation of generation in Angiosperm.
