A chromosome is a threadlike body in the nucleus, visible (well stained, at division time) as the nucleus’s contents coil up for transport. Between divisions the same threads run loose and invisible — working state; at division they condense — moving state. Photographed and sorted, a cell’s chromosomes make its karyotype: the full deck, laid out.
Biology · Glossary
What is Chromosomes?
Also known as: chromosome · karyotype