heterochromosome

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

noun

, Genetics.

1. sex chromosome.

heterochromosome

/ ˌhɛtərəʊˈkrəʊməˌsəʊm /

noun

1. an atypical chromosome, esp a sex chromosome
2. a chromosome composed mainly of heterochromatin

Word History and Origins

Origin of heterochromosome¹

First recorded in 1900–05; hetero- + chromosome

Example Sentences

In figures 113-116 the small heterochromosome pair is shown in various positions with reference to the other chromosomes of the metaphase of the first spermatocyte.

From Project Gutenberg

Figure 137 is an exceptional anaphase in which the heterochromosome elements are not mingled with the polar masses of chromatin.

From Project Gutenberg

The small heterochromosome divides in the second spindle in advance of the others as seen in figure 150.

From Project Gutenberg

First spermatocyte, growth stage showing the heterochromosome group.

From Project Gutenberg

First spermatocyte, spireme stage, showing the larger and smaller heterochromosome associated with a plasmosome. 65-68.

From Project Gutenberg