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Nature 435, 899-900 (16 June 2005) | doi:10.1038/435899a; Published online 15 June 2005

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Cell biology:  New cog for a familiar machine

Mary Dasso1

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During cell division, intricate cellular machinery separates duplicated DNA into daughter cells. Unexpectedly, the assembly of this crucial apparatus seems to rely on components other than proteins and DNA.

When a cell divides, in a process known as mitosis, the duplicated genetic material must be divided and distributed precisely between the two 'daughter' cells. This task is the responsibility of an elaborate structure called the mitotic spindle, which forms during mitosis1.

  1. Mary Dasso is in the Laboratory of Gene Regulation and Development, NICHD, NIH, Building 18, Room 106, Bethesda, Maryland 20892-5431, USA.
    Email: mdasso@helix.nih.gov

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