Megaspore

Basically, I want to know what an ovule is. Also, I want to know what a megaspore is, what it does, and how it works.

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... canal cells and neck cells form archegonia. That female gametophyte or female prothallus arises by means of number of divisions done by the megaspore and only 2-4(5) turn into egg-cells. If you're interested in sexual reproduction i strongly recommend reading something about Gnetophytina ...

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... The pollen grain has a hard bumpy outer cell wall containing 2 cells, a tube cell and a generative cell (suspended in the tube cell). Process of megaspore formation (megasporogenesis) Female egg development begins with: megasporangia or megaspore mother cell * is diploid * is found in the ovary ...

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Please help me in answer this questions: 1.Explain what megaspore formation is! Show the pathway of megaspore formation? 2.Explain what microspore formation is! Show the pathway of microspore fomation! 3.Explain the double fertilization process in plants? ...

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... still produce spores that give rise to the haploid generation, which is the part of the plant that you see.. But in angiosperms, divisions of the megaspore are the only component of the gametophyte generation, and the plants you see are sporophytes. Plants have 'gender', similar to animals (although ...

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