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Meiotic division in a microsporocyte

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1  tetrad (meiosis)
3  metaphase (meiosis)
4  pollen grain with exine (outer layer)
2  metaphase (meoisis)

 
English name: Lily
Scientific name: Lilium sp.
Familia: Liliaceae
Classis: Monocotyledonas
Phylum: Angiospermae
Regnum: Plantae
Meiotic division occurs in the microsporocytes within the anthers, leading to the formation of tetrads that contain four haploid microspores. Each microspore undergoes an additional mitotic division, in which a pollen grain id formed.

http://www.vcbio.science.ru.nl/en/image-gallery/show/labels/PL0154/print/

last modified: 5 Jun 2014