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Pollen grain of Cycas are shed at which stage ?
- a)One celled
- b)Two celled
- c)Three celled
- d)Four celled
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celle...
Pollen grain is the first cell of the gametophyte. The microspore germinates in situ i.e., while within the microsporangium. Each microspore divides asymmetrically into a 2-cells: a smaller prothallial cell and a larger antheridialcell. The prothallial cell does not divide further while the antheridial cell divides into a smaller generative cell near the prothallial cell and a larger tube cell. Finally pollination takes place at 3-celled stage.
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Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celle...
Stage of Pollen Shed in Cycas
- Three celled stage: The pollen grains of Cycas are shed at the three celled stage. At this stage, the pollen grain consists of three cells - a tube cell and two prothallial cells. This is a crucial stage in the development of pollen grains before they are shed for pollination.
Significance of Three Celled Stage
- Maturation: The three celled stage signifies the maturation of the pollen grain, making it ready for dispersal and pollination.
- Pollen tube formation: The presence of a tube cell in the pollen grain at this stage indicates the future formation of a pollen tube, which is essential for the fertilization process.
- Pollination process: Shedding the pollen grains at the three celled stage ensures that they are at the right developmental stage to successfully pollinate the female reproductive structures of Cycas.
Conclusion
In conclusion, the pollen grains of Cycas are shed at the three celled stage, which is a critical phase in their development for successful pollination and fertilization. Understanding the timing and stage of pollen shed is essential for the reproductive success of Cycas plants.
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Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celledc)Three celledd)Four celledCorrect answer is option 'C'. Can you explain this answer?
Question Description
Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celledc)Three celledd)Four celledCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celledc)Three celledd)Four celledCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celledc)Three celledd)Four celledCorrect answer is option 'C'. Can you explain this answer?.
Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celledc)Three celledd)Four celledCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celledc)Three celledd)Four celledCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pollen grain of Cycas are shed at which stage ?a)One celledb)Two celledc)Three celledd)Four celledCorrect answer is option 'C'. Can you explain this answer?.
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