Spindle example sentences



At this stage the chromosomes align at the equator and the microtubules from opposite poles of the spindle get attached to the kinetochores (Figureure 4) of sister chromatids.During this phase the chromosomes are fully condensed and the meiotic spindle is assembled to prepare the homologous chromosomes for separation.Hence, the metaphase is characterised by all the chromosomes coming to lie at the equator with one chromatid of each chromosome connected by its kinetochore to spindle fibres from one pole and its sister chromatid connected by its kinetochore to spindle fibres from the opposite pole (Figureure 2 b).The microtubules from the opposite poles of the spindle attach to the pair of homologous chromosomes.In 1764, the spinning jenny was invented by John Kaye which increased the productivity of the traditional spindles.By 1862 four mills were at work with 94,000 spindles and 2,150 looms.The nuclear envelope and the nucleolus disappear and the spindle fibres start appearing.These structures serve as the sites of attachment of spindle fibres (formed by the spindle fibres) to the chromosomes that are moved into position at the centre of the cell.

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