heterochromosome

American  

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

noun

Genetics.

1. sex chromosome.

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heterochromosome British  

/ ˌhɛtərəʊˈkrəʊməˌsəʊm /

noun

1. an atypical chromosome, esp a sex chromosome

2. a chromosome composed mainly of heterochromatin

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Etymology

Origin of heterochromosome

First recorded in 1900–05; hetero- + chromosome

Example Sentences

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

The chief interest in this abnormality centers in the fact that the two small chromosomes of this specimen behave exactly like the usual single one, emphasizing the individuality of this particular heterochromosome.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

First spermatocyte, spireme stages, showing the heterochromosome group. 133-135.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

First spermatocyte from the same testis, metaphase showing a similar heterochromosome group.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

First spermatocyte, growth stage showing the heterochromosome group.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria