telocentric chromosome


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Related to telocentric chromosome: acrocentric, acrocentric chromosome, metacentric chromosome

tel·o·cen·tric chro·mo·some

a chromosome with a terminal centromere; such chromosomes in humans are unstable and arise by misdivision or breakage near the centromere and are usually eliminated within a few cell divisions.

telocentric chromosome

a chromosome in which the CENTROMERE is terminal (situated at one end), so that there is effectively only one arm.
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References in periodicals archive ?
The female with 2n = 41 had one extra small metacentric chromosome, and lacked two telocentric chromosomes of the autosomal complement.
pythagoricus show a chromosome complement of 44 telocentric chromosomes, and 42 telocentric chromosomes in males of P.
farreri, possibly involving the following steps: (1) loss of the chromosomal arms and emergence of telocentric chromosomes; (2) fusion of telocentric chromosomes; (3) deletion of chromosomal arms after fusion; and (4) trans-location and duplication of the major rRNA loci.
Briefly, fusion is the consequence of breakage proximal to or within the centromere of two usually nonhomologous acro- or telocentric chromosomes followed by reunion uniting the longer and shorter segments, respectively.
Stable telocentric chromosomes formed by spontaneous misdivision in Nigella doerfleri.
marulius has 4 metacentric, 4 submetacentric and 36 telocentric chromosomes for the Thailand stock, while the Indian stock has 40 metacentric and 4 telocentric chromosomes.
In addition to the reconstructed chromosomes 2B and 2R, among the progeny screened there were several plants with telocentric chromosomes 2RS, 2RL, 2BS, or 2BL, with isochromosomes 2RS, 2BS, and 2BL, and centric translocations 2BS.2RS and 2BL.2RL (Fig.
lateralis karyotype has 19 telocentric chromosomes or 38 chromosome arms, suggests that M.
This reduction in chromosome number may be because of Robertsonian fusion, wherein telocentric chromosomes fused, reducing the total chromosome number (Wang & Guo 2004).