Chromosomes

Definition

Thread-like structures found in the nucleus of eukaryotic cells, each composed of a DNA molecule tightly coiled around proteins called histones. In insects, chromosomes carry genetic information essential for development, behavior, and other traits.

Etymology

From Greek 'chroma' meaning 'color' and 'soma' meaning 'body'.

Example

The number of chromosomes in a given species can vary, but they play a crucial role in inheritance.

Related Terms

• DNA
• Genes
• Karyotype