
n.
One of the serially aligned beadlike granules of concentrated chromatin that constitutes a chromosome during the early phases of cell division.
chromomeric chro'mo·mer'ic (-mĕr'ĭk, -mîr'-) adj.
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American Heritage Dictionary:
chro·mo·mere |

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American Heritage Stedman's Medical Dictionary:
chro·mo·mere |
Oxford Dictionary of Biochemistry:
chromomere |
| chromogranin, chromogenic substrate, chromogenic | |
| chromonema, chromophore, chromoplast |
Saunders Veterinary Dictionary:
chromomere |
1. any of the beadlike granules occurring in series along a chromonema.
2. granulomere.
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Chromomere |
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A chromomere, also known as an idiomere, is one of the serially aligned beads or granules of an eukaryotic chromosome, resulting from local coiling of a continuous DNA thread.[1] It is visible on a chromosome during the prophase of meiosis and mitosis. Giant banded (Polytene) chromosomes resulting from the replication of the chromosomes and the synapsis of homologs without cell division is a process called endomitosis. These chromosomes consist of more than 1000 copies of the same chromatid that are aligned and produce alternating dark and light bands when stained. The dark bands are the chromomere.
The chromomeres are present during leptotene phase of prophase I during meiosis. During zygotene phase of prophase I, the chromomeres of homologs align with each other to form homologous rough pairing (homology searching). These chromomeres helps provide a unique identity for each homologous pairs.
There are more than 2000 chromomeres on 20 chromosomes of maize.
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![]() | American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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![]() | American Heritage Stedman's Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
| Oxford Dictionary of Biochemistry. Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved. Read more | ||
![]() | Saunders Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more | |
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![]() | Wikipedia on Answers.com. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Chromomere. Read more |
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