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Chromomere

Biology ChromistaChromosomal crossover

Chromomere One of the serially aligned beads or granules of a eukaryotic chromosome, resulting from local coiling of a continuous DNA thread.
Chromosomal deletion The loss of part of a chromosome's DNA.

 


Chromomere
The term applied by Wilson (1896) to each of the serially aligned granules of a chromosome, best seen when the thread is relatively elongated as in early prophase 1 ofmeiosis(Gk. chroma, colour; meros, part).
Related Terms:
Chromosome ...

chromomere One of the chromatin granules of characteristic size on the chromosome; may be identical with a gene or a cluster of genes.
chromonema A convoluted thread in prophase of mitosis or the central thread in a chromosome.

Duplication
The repetition of a sequence of chromomeres or other chromosome segment, usually in linear juxtaposition to the original.

Chromosomes of amphibian oocytes having loops suggestive of a lampbrush. Large chromosomes found in amphibian eggs, with lateral DNA loops, extending from chromomeres, producing a brushlike appearance under the microscope.

See also: DNA, Chromosome, Chromosomes, Sequence, Protein

Biology ChromistaChromosomal crossover

 
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