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chromatidChromatid (ger.)

  • One of the two strands into which a chromosome divides longitudinally during mitosis. (OED 2011)
    cell
    1900

    The term ‘chromosome’ being […] restricted to the units of the division figures, there remains no name for the parts composing these when they are compound, as in tetrads and diads. […] I should like, therefore, to propose the term ‘chromatid’ for each of these.

    McClung, C.E. (1900). The spermatocyte divisions of the Acrididae. Kansas Univ. Quarterly A 9, 73-100: 78.

    1982

    chromatid One of the two distinct longitudinalfilaments of a reduplicated chromosome apparent during mitosis and meiosis. 

    Lincoln, R.J., Boxshall, G.A. & Clark, P.F. (1982). A Dictionary of Ecology, Evolution and Systematics: 46.