metacentric


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Related to metacentric: metacenter, metacentric chromosome

metacentric

 [met″ah-sen´trik]
having the centromere almost at the middle of the replicating chromosome.

met·a·cen·tric

(met'ă-sen'trik),
Having the centromere about equidistant from the extremities, said of a chromosome.
[meta- + G. kentron, circle]

metacentric

/meta·cen·tric/ (-sen´trik) having the centromere near the middle, so that the arms of the replicating chromosome are approximately equal in length.

metacentric

(mĕt′ə-sĕn′trĭk)
adj.
1. Of or relating to a metacenter.
2. Genetics Having the centromere in the median position so that the arms are of equal length. Used of a chromosome.
n.
A metacentric chromosome.

met′a·cen·tric′i·ty (-sĕn-trĭs′ĭ-tē) n.

metacentric

[met′əsen′trik]
Etymology: Gk, meta + kentron, center
pertaining to a chromosome in which the centromere is located near the center so that the arms of the chromosome are of approximately equal length. Compare acrocentric, submetacentric, telocentric.

metacentric

adjective
(1) Referring to a centromere located at a chromosome’s midpoint.
(2) Referring to a chromosome with arms of equal length—i.e., equidistant from a chromosome’s centromere.

metacentric

Of a chromosome in which the CENTROMERE is at or near the centre.

metacentric

a replicating chromosome with the centromere midway between the ends.
References in periodicals archive ?
As can be seen, karyotype analysis has revealed 2n=20 chromosomes in which five pairs were metacentric, three pairs submetacentric and the remaining two pairs were subacrocentric (Table 2 and Fig.
Telomeric C-bands were observed mostly in the telomeres of a metacentric chromosome and a submetacentric chromosome.
differ only in the number of metacentric (M) and telocentric (T)
The karyotype of this species is identical to that reported here for the Caucasian snow vole, including the possession of a metacentric chromosome 26.
Besides the centromeric blocks, the presence of a small interstitial band was observed on the long arm of the fourth pair of metacentric chromosomes for A.
2a) comprised 15 metacentric pairs, 11 submetacentric pairs, 5 subtelocentric pairs and 18 telocentric pairs (Fig.
The mean arm ratios indicated that this species has 16 pairs of clearly metacentric chromosomes (chromosome pairs 1-16; Table 2).
The basic karyotype of Akodon dolores (2n = 34) consists of five pairs of large metacentric or submetacentric chromosomes, eleven pairs of acrocentric chromosomes of decreasing size, and a pair of small metacentrics.
Essentially, their involvement becomes apparent when a metacentric in one complement is replaced by two acro- or telocentric chromosomes in another, though that observation does not in itself distinguish between the two processes.
harpax was 2n = 90 or 2n = 92, and chromosomes were divided in 2 groups, acrocentric (A) and metacentric (M) (Table 1).
midae indicates 6M + 10SM +2 ST (metacentric + submetacentric + subtelocentric) chromosome pairs, the lowest number of metacentric and the highest number of subtelocentric chromosomes when compared with the Californian species.
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.