acrocentric


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Related to acrocentric: telocentric, submetacentric chromosome

acrocentric

 [ak″ro-sen´trik]
having the centromere toward one end of the replicating chromosome.

ac·ro·cen·tric

(ak'rō-sen'trik),
Having the centromere close to one end; said of normal chromosomes 13-15 and 21-22.
[acro- + G. kentron, center]

acrocentric

/ac·ro·cen·tric/ (-sen´trik) having the centromere toward one end of the replicating chromosome so that one arm is much longer than the other.

acrocentric

(ăk′rō-sĕn′trĭk)
adj.
Having the centromere located near one end of the chromosome so that one chromosomal arm is long and the other is short.

ac′ro·cen′tric n.

acrocentric

[ak′rōsen′trik]
Etymology: Gk, akron, extremity, kentron, center
pertaining to a chromosome in which the centromere is located near one of the ends so that the arms of the chromosome are extremely uneven in length. Compare metacentric, submetacentric, telocentric.

Acrocentric

Referring to a centromere located near the end of a chromosome.

ac·ro·cen·tric

(ak'rō-sen'trik)
Having the centromere close to one end; said of a normal chromosome.
[acro- + G. kentron, center]

acrocentric

(of a chromosome) having the CENTROMERE near one end, making one chromosome arm much longer than the other.

acrocentric

having the centromere toward one end of the chromosome or chromatid; see telocentric chromosome.
References in periodicals archive ?
High-quality metaphase preparations were obtained from 29 specimens, of which 23 presented the same autosomal chromosome group: 2n = 74, in which autosomal chromosomes are acrocentric, and gradually decrease in size from the 1st to the 36th pair.
In Robertsonian translocation, the pericentric regions of two acrocentric chromosomes fuse to form a single centromere or two.
Their autosomal set included 17 pairs meta and submetacentric and four pairs of acrocentric chromosomes (Figs.
That difference derives from a Robertsonian translocation of 2 acrocentric chromosomes into a single metacentric chromosome or vice versa.
The first pair of autosomes is acrocentric and distinctly larger, but the rest of the autosomes form a graded series from medium to small-sized acrocentric elements.
The investigators noticed cosegregation of dyslexia, defined by oral reading ability at least two years below expected grade level, and a cytogenetic polymorphism at the top of the acrocentric chromosome 15 in eight families selected on the basis of apparent autosomal dominant transmission of the disorder.
Csonka's team induced the formation of new human artificial chromosomes by targeting DNA sequences into amplifiable sites in the centromeric/short-arm regions of human acrocentric chromosomes (chromosomes in which the centromere is close to one end).
Lohi is reported to have 54,XX and 54XY chromosomal complement with three metacentric pairs and 50 sub-acrocentric or acrocentric pairs (Babar et al.
cyaneotaeniatus agree with that described for the chromosomes of the majority of pholcid species karyotyped thus far, except for acrocentric X chromosomes of Pholcus crypticolens Bosenberg & Strand 1906 (Suzuki 1954) and autosomes of Pholcus manueli Gertsch 1937 (under Pholcus affinis Schenkel 1953) (Xiuzhen et al.
Heterochromatic regions in the centromeric and paracentromeric parts of some chromosomes (1, 9, and 16), and the short arms of the acrocentric chromosomes were not included in the analysis because of suppression of Cot-1 DNA in these regions.
The rest of the autosomes are acrocentric except for the smallest pair which is metacentric.