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Definition of Prophase chromosome

Prophase chromosome: A chromosome at the prophase stage in the cell cycle, before metaphase (when a chromosome is most highly condensed). The chromosomes in prophase are distended and often tangled like a ball of twine within the nucleus of the cell. However, when fine chromosomal details are important, prophase chromosomes are frequently selected for high resolution chromosome banding and analysis.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=20690
Last Editorial Review: 6/14/2012

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