science
Grade-10
Easy
Question
Which of the following is wrong about the haplo-diplontic life cycle?
The sporophyte and gametophyte phase have an equal life span.
Both gametophyte and sporophyte phases are multicellular.
Pteridophytes and bryophytes exhibit this type of life cycle.
The sporophyte is dominant.
The sporophyte and gametophyte phase have an equal life span.
Both gametophyte and sporophyte phases are multicellular.
Pteridophytes and bryophytes exhibit this type of life cycle.
The sporophyte is dominant.
Hint:
Diploid and haploid stages are multicellular.
The correct answer is: The sporophyte is dominant.
- Alteration of generation involves alteration of sporophyte and gametophytic phases in the lifecycle of plants and algae
- The organisms can follow haplontic, diplontic or haplo-diplontic lifecycle
- Bryophytes and pteridophytes follow haplo-diplontic lifecycle
- In haplo-diplontic lifecycle, both diploid and haploid stages are multicellular
- In pteridophytes, sporophyte is dominant phase
- In bryophytes, gametophyte is dominant
- Alteration of generation is the rotation of sporophyte and gametophyte phases
- Organism can follow either haplontic or diplontic or haplo-diplontic lifecycle
- Green algae follow haplontic lifecycle
- Pteridophytes and bryophytes follow haplo-diplontic lifecycle
- Angiosperms, gymnosperms follow diplontic lifecycle
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