prochromosomen.
/prəʊˈkrəʊməsəʊm/, U.S. /proʊˈkroʊməˌsoʊm/ Cell Biology.
A mass of densely staining chromosome material that occurs in certain interphase nuclei, often near the centromere of a chromosome; = chromocentre n.
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > centromere > parts associated with
prochromosome1905
primary constriction1932
1905 Bot. Gaz. 40 385 In very young pollen mother-cells he [sc. Overton] finds masses of chromatin which he calls prochromosomes.
1934 L. W. Sharp Introd. Cytol. (ed. 3) iii. 57 In many nuclei there are at certain stages one or more conspicuous masses of karyotin at several points in the reticulum. Of the many terms applied to these the most suitable seems to be chromocenters... In some cases it has been shown that they represent definite chromosomal regions which remain condensed and highly chromatic... These euchromocenters appear to correspond in part to the ‘prochromosomes’.
1965 A. K. Sharma & A. Sharma Chromosome Techniques viii. 205 The number of prochromosomes may be equal to, or if fused, less than, the number of chromosomes in the complement.
2003 Edinb. Jrnl. Bot. 60 449 Interphase nuclei were classified into three categories:..complex chromocentres,..simple chromocentres,..and round prochromosomes.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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n.1905- fatherdust
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- fatherhood
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