heterochromosome

American  

[het-er-uh-kroh-muh-sohm] / ˌhɛt ər əˈkroʊ məˌsoʊm /

noun

Genetics.

1. sex chromosome.

---

heterochromosome British  

/ ˌhɛtərəʊˈkrəʊməˌsəʊm /

noun

1. an atypical chromosome, esp a sex chromosome

2. a chromosome composed mainly of heterochromatin

---

Etymology

Origin of heterochromosome

First recorded in 1900–05; hetero- + chromosome

Example Sentences

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

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

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

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

First spermatocyte, spireme stage, x the heterochromosome group.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

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

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

First spermatocyte, spireme stage, x the heterochromosome group.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria