heterochromosome

[ het-er-uh-kroh-muh-sohm ]

/ ˌhɛt ər əˈkroʊ məˌsoʊm /

Origin of heterochromosome

First recorded in 1900–05; hetero- + chromosome

Figures 72-74 show the metakinesis of the heterochromosome bivalent.

Studies in Spermatogenesis |Nettie Maria Stevens
Bouquet stage from iron-hæmatoxylin preparations, showing the heterochromosome bivalent (x).

Studies in Spermatogenesis |Nettie Maria Stevens
Figure 137 is an exceptional anaphase in which the heterochromosome elements are not mingled with the polar masses of chromatin.

Studies in Spermatogenesis |Nettie Maria Stevens
The heterochromosome group is blended into a vacuolated sphere in growth stages (figs. 199, 200).

Studies in Spermatogenesis |Nettie Maria Stevens

Of the insects considered in this paper Aphis and Termopsis have no "accessory chromosome" or "heterochromosome" of any kind.

Studies in Spermatogenesis (Part 1 of 2) |Nettie Maria Stevens

heterochromosome

/ (ˌhɛtərəʊˈkrəʊməˌsəʊm) /

an atypical chromosome, esp a sex chromosome

a chromosome composed mainly of heterochromatin

heterochromosome

[ hĕt′ə-rō-krō′mə-sōm′ ]

A chromosome composed primarily of heterochromatin.

allosome