Dictionary.com
Thesaurus.com
Synonyms

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of heterochromosome

First recorded in 1900–05; hetero- + chromosome

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Heterochromosome group. p = plasmosome, l = large heterochromosome, s = small heterochromosome. 24-27.

From Studies in Spermatogenesis Part II by Nettie Maria Stevens

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 Nettie Maria Stevens

Giant spermatocyte, spireme stage, heterochromosome group double the usual size.

From Studies in Spermatogenesis Part II by Nettie Maria Stevens

First spermatocyte, spireme stage, x the heterochromosome group.

From Studies in Spermatogenesis Part II by Nettie Maria Stevens

As to the second alternative, I see no reason for supposing that the small heterochromosome of a pair is in any different condition, as to activity, from the large one.

From Studies in Spermatogenesis Part II by Nettie Maria Stevens

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training