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Organized structure of distinctive morphology and function, not bounded by a lipid bilayer membrane and occurring within the cell. Includes ribosomes, the cytoskeleton and chromosomes. A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information. The terminal region of a polytene chromosome. A thread-like connection joining two regions of ectopically paired polytene chromosomes. A stretch of less tightly packed chromatin along the polytene chromosome, found between bands. A stretch of densely packed chromatin along the polytene chromosome, visible as a morphologically distinct band. A swelling at a site along the length of a polytene chromosome, thought to be the site of active transcription. A region of the polytene chromosome where the diameter is considerably decreased, probably resulting from local differences in chromosome organization. A region at which the centric regions of polytene chromosomes are joined together. A type of chromosome in a polyploid cell, formed when multiple copies of homologous chromosomes are aligned side by side to give a giant chromosome in which distinct chromosome bands are readily visible.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: polytene chromosome
Acc: GO:0005700
Aspect: Cellular Component
Desc: A type of chromosome in a polyploid cell, formed when multiple copies of homologous chromosomes are aligned side by side to give a giant chromosome in which distinct chromosome bands are readily visible.
Proteins in PDR annotated with:
   This term: 91 [Search]
   Term or descendants: 137 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0005700 - polytene chromosome (interactive image map)
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Created and Maintained by: Michael Riffle