Abstract
OSTERGREN1 suggested that, before and during metaphase, the mitotic and meiotic chromosomes are subjected to pole-directed forces α, which orient the chromosomes at the equator of the spindle and separate them at anaphase. He also postulated a centrifugal force, γ, moving the chromosomes to the periphery of the metaphase plate; but he could suggest no physical explanation for γ. McIntosh et al.2 developed Ostergren's hypothesis, but failed to account for several important features of mitotic and meiotic spindles, including γ.
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GAWADI, N. The Spindle at Metaphase. Nature 232, 61–62 (1971). https://doi.org/10.1038/232061a0
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DOI: https://doi.org/10.1038/232061a0
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