chromomere

Example:Contrary to euchromatin, which is actively transcribed, isochromatin, or less reactive chromomeres, is often inactive.

Definition:The part of a chromosome that stains less deeply than euchromatin and is generally more tightly coiled, indicating less transcriptional activity.

Example:Euchromatin, or more actively transcribed chromomeres, plays a vital role in gene expression and cellular function.

Definition:The part of a chromosome that stains more deeply than isochromatin and is generally more extended in length and less twisted, indicating higher transcriptional activity.