Dividing Pollen Cell #5 is a photograph by Professor T. Naguro which was uploaded on July 6th, 2016.
Dividing Pollen Cell #5
Dividing pollen cell. Coloured scanning electron micrograph of a section through a pollen mother cell from a spiderwort (Tradescantia reflexa)... more
Title
Dividing Pollen Cell #5
Artist
Professor T. Naguro
Medium
Photograph
Description
Dividing pollen cell. Coloured scanning electron micrograph of a section through a pollen mother cell from a spiderwort (Tradescantia reflexa) flower, during the metaphase (I) stage of meiosis (gamete formation) - showing: chromosomes (yellow), spindle fibres (green), cytoplasm (violet). During meiosis four daughter nuclei are formed from one parent nucleus after two stages of nuclear division. Meiosis occurs only in the sex cells (gametes) of the testes and ovaries. At metaphase (I) pairs of homologous chromosomes line up along the centre of the cell ready to be separated during anaphase (I). Separation results in two cells with half the usual number of chromosomes. The full complement is restored when two gametes fuse during
Uploaded
July 6th, 2016
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