acrocentric chromosome


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  • noun

Words related to acrocentric chromosome

a chromosome with the centromere near one end so that one chromosomal arm is short and one is long

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References in periodicals archive ?
Trinomys albispinus was collected only in locality 45 (MN82935, from Fazenda Galileia), the fundamental number (FN) 108, with 25 pairs of biarmed and four pairs of acrocentric chromosomes (Fig.
The satellite in one acrocentric chromosome pair of F.
A pair of autosomes may occur in heteromorphic state and it consists of a submetacentric and an acrocentric chromosome (NFa = 71: Sozen et al.
Chromosome 21 most frequently creates translocations with acrocentric chromosomes than to other non-acrocentric autosomal or sex chromosomes.
In cytotype C2, silver staining revealed only one positive signal in the single chromosome of the pair 1 (Figure ld) whereas FISH with the 18S rDNA probe hybridized in two different chromosomes: one coincident with the Ag-NOR signal in the single chromosome No 1 and the other in one acrocentric chromosome (Figure 2a).
Considering that the highest chromosome numbers occur in some less morphologically derived spider species (Mesothelae and Mygalomorphae) and that the acrocentric chromosome morphology and [X.
In this study, one plant with 2n = 41 chromosomes from mono-3 and one plant with 2n = 39 + 1 acrocentric chromosome from mono-6 were identified.
In the present study, the distributional pattern of autosomal NOR markers located on acrocentric chromosomes was investigated in the hybrid zone in Denmark using a stain that reveals only transcribed ribosomal genes (Hubbell 1985).
Two acrocentric autosome pairs and another acrocentric chromosome with a secondary constriction show interstitial C-positive bands on their long arms.
These differences in the karyotype formula between submetacentric and subtelocentric may be involved in the karyotype assembly since chromosomes are small, with size not more than 5 pm, but herein the variation that occurs between metacentric and acrocentric chromosomes, does not allow assembly errors, ensuring the karyotypic formula as unique to each species.
germanicum, with the acrocentric chromosome X, probably originated by tandem fusion of chromosomes [X.
1] plants, although one plant with 39 normal chromosomes plus one acrocentric chromosome was found.
A maximum of 12 nucleolar organizer regions (NOR) bearing chromosomes were visualized, with the NORs located terminally on the short arms of one pair of medium sized metacentric chromosomes, and on five small-sized acrocentric chromosome pairs.
One extra, small acrocentric chromosome was detected in an aneuploid To plant (Line Number 34; 26 chromosomes) and in a tetraploid [T.