chromocenter


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kar·y·o·some

(kar'ē-ō-sōm),
A mass of chromatin often found in the interphase cell nucleus representing a more condensed zone of chromatin filaments.
[karyo- + G. sōma, body]

chromocenter

See karyosome.
References in periodicals archive ?
Specifically, genetic equilibrium for sex chromosomes and equilibrium for the IS-1 autosomal polymorphism in both 2009 and 2010 and lack of differences in pairing and chromocenter morphologies all argue against a hybridization event.
We made more extensive collections at the Coeur d'Alene site in 2009 and 2010 to (1) verify the presence and frequencies of larvae identified in earlier collections, (2) test for genetic equilibrium among sex chromosomes and the most abundant autosomal polymorphism, IS-1, (3) determine the extent of chromosome pairing and morphology of chromocenters among parental and intermediate types and (4) determine the geographic extent of these types by analyzing larvae from three nearby sites to the west and four nearby sites to the east.
We averaged the two-dimensional areas (greatest length and width via an ocular micrometer) of the chromocenters (three amplified centric regions) from 10 Simulium saxosum/S.