chromoneman.
/ˌkrəʊməˈniːmə/ Biology.
The coiled threadlike core of a chromatid, believed by some to be the carrier of the genes.
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chromonema1925
genoneme1934
1925 E. B. Wilson Cell (ed. 3) 1128 Chromonema, a fine basichromatic thread from which arises the spireme-thread.
1934 N. Koltzoff in Science 5 Oct. 313/1 The size of the chromosomes in the salivary glands is determined through the multiplication of genonemes. By this term I designate the axial thread of the chromosome, in which the geneticists locate the linear combination of genes; the cytologists call it generally the ‘axoneme’ or ‘chromonema’.
1954 Sci. News 34 71 Chromosomes consist of a number of tightly coiled threads—chromonemata—embedded in a matrix.
1957 Encycl. Brit. VI. 943/2 After the two daughter chromosome groups reach the poles each chromosome gradually takes on the appearance of a delicate, coiled thread... It is the chromonema..and represents the true, permanent part of the chromosome, including the hereditary materials.
1963 I. F. Henderson & W. D. Henderson Dict. Biol. Terms (ed. 8) 101/1 Chromonema, a coiled or convoluted thread in prophase of mitosis; central thread in chromosome.
This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2019).
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n.1925