CHROMOMERE Meaning and
Definition
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A chromomere, in the field of genetics, refers to a localized region or band within a chromosome that appears distinct from the rest of the chromosome due to its denser structure. It is a highly condensed, coiled segment that becomes visible during certain stages of cell division, particularly in the prophase of meiosis or mitosis.
Chromomeres are primarily composed of tightly wound chromatin fibers, which consist of DNA molecules and associated proteins. They are often arranged in a linear fashion along the length of a chromosome and are crucial for maintaining the structural integrity of the chromosome.
These distinct chromosomal regions play significant roles in various genetic processes. They serve as sites where genetic material is densely packed and organized, facilitating efficient segregation of chromosomes during cell division. Additionally, chromomeres are involved in promoting genetic recombination between homologous chromosomes during meiosis, a process crucial for genetic diversity and inheritance.
The number and position of chromomeres on a chromosome can vary depending on the species and specific stage of cell division. Scientists often utilize the presence and characteristics of chromomeres to study and analyze chromosomes, aiding in the identification, classification, and comparison of genetic material.
In conclusion, chromomeres are condensed segments of chromatin within a chromosome that play important roles in maintaining chromosome structure, aiding in chromosome segregation during cell division, and facilitating genetic recombination.
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1. A minute granule of chromatin or nuclein, the aggregate of a number of which constitutes the chromosome. 2. One of the segments into which the chromosome is divided by slight constrictions.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for CHROMOMERE
- chromomebe
- chromomeze
- chromomeve
- chromomepe
- chromomese
- chromomeru
- chromomerm
- chromomera
- chromomerg
- c hromomere
- ch romomere
- chr omomere
- chro momere
- chrom omere
- chromo mere
- chromom ere
- chromome re
- chromomer e
Etymology of CHROMOMERE
The word "chromomere" comes from the combination of two Greek roots: "chromo" meaning "color" and "mere" meaning "part" or "segment". In biology, chromomeres refer to localized condensations of chromosomes that appear as bands or segments during the cell division process of meiosis. The term was first coined by the German anatomist Wilhelm Waldeyer in 1888.
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