metacentric chromosome


Also found in: Thesaurus, Medical.
Related to metacentric chromosome: holocentric chromosome, submetacentric chromosome
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.metacentric chromosome - a chromosome having two equal arms because the centromere is in median positionmetacentric chromosome - a chromosome having two equal arms because the centromere is in median position
chromosome - a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order; "humans have 22 chromosome pairs plus two sex chromosomes"
Mentioned in ?
References in periodicals archive ?
4 3 1 15 12 8 16 X 10 13 2 11 9 AMO 1 7 3p 3q 6 2p 2q 5 10 4p 4q 11 X 8 9 ACU 1p 1q 2 4*p 4*q 5 6 7 X * The metacentric chromosome was used for comparison; p = short arm; q = long arm.
Comparative Genomic In Situ Hybridization and the Possible Role of Retroelements in the Karyotypic Evolution of Three Akodontini Species
FISH mapping of 5S rDNA probes showed intercalary signals located in two metacentric chromosome pairs (5p and 9q) in all striped venus clams regardless of origin and whether they were morphologically identified as C.
Resolving the Taxonomic Status of Chamelea gallina and C. striatula (Veneridae, Bivalvia): A Combined Molecular Cytogenetic and Phylogenetic Approach
amana is small and spherical whereas, the satellites in three metacentric chromosome pairs of F.
Cytotaxonomical analysis of eleven Turkish Fritillaria L. (Liliaceae) taxa
B Population showed 2n=50 chromosomes, with 12m + 16sm + 6st + 16a, and with also a macro supernumerary chromosome, similar in size to the first pair of metacentric chromosome found in 100% of the cells of about 80% of the females analized (Figure 1c).
Karyotypic diversity among three species of the genus Astyanax (Characiformes: Characidae)/Diversidade cariotipica entre tres especies do genero Astyanax (Characiformes, Characidae)
The female with 2n = 41 had one extra small metacentric chromosome, and lacked two telocentric chromosomes of the autosomal complement.
Diversidad cromosomica en tuco-tucos (Ctenomys, Rodentia) de los humedales del noreste Argentino
The fourth metacentric chromosome pair is highlighted in Fig.
Banding patterns of three leafcutter ant species of the genus Atta (Formicidae: Myrmicinae) and chromosomal inferences
The X chromosome was the second longest telocentric chromosome, while Y chromosome was the shortest and only metacentric chromosome. The karyotype composition of the Angora goat is 29 (T), XY (T, M) (Table 1; Fig.
STUDY ON GENETIC CHARACTERISTICS OF IN VITRO CULTURE AND INTRACELLULAR TRANSDUCTION OF EXOGENOUS FLURESCENT PROTEINS IN FIBROBLAST CELL LINE OF ANGORA GOAT
Loureiro (1999) obtained the same pattern (NORs in only one chromosome pair) for two Crenicichla species, with NORs located on the short arm of the first metacentric chromosome pair, and for Geophagus brasiliensis, on the short arm of the larger pair of the ST-A group.
Description of the karyotype of Geophagus cf. proximus (Perciformes, Cichlidae, Geophaginae)/Descricao do cariotipo de Geophagus cf. proximus (Perciformes, Cichlidae, Geophaginae)
The differences observed in the cytotype C2 in relation to the cytotype C1 (loss of one element of the metacentric pair No 1, loss of one of the chromosomes of the subtelocentric pair No 4, and appearance of a large metacentric element) could be explained by: a) a fusion of one of the subtelocentrics of the pair No 4 with one of the acrocentric elements of pair No 5 (the largest of the acrocentric series), which would maintain the size relation between those elements and the new large metacentric chromosome (Figure 3); or b) a pericentric inversion of one of the chromosomes of the metacentric pair No 1 causing the displacement of the centromere from a medium to a terminal location, and maintaining the segment that possesses rDNA cluster at the same position (Figure 4).
Karyotype and nucleolus organizer regions of Ophisternon aenigmaticum (Teleostei: Synbranchiformes: Synbranchidae)/ from Venezuela/Cariotipo y regiones de organizadores nucleolares de Ophisternon aenigmaticum (Teleostei: Synbranchiformes: Synbranchidae) de Venezuela ..
This nonMendelian transmission would result from a basic asymmetry of the female meiotic spindle; thus when heterozygous Rb configurations are present, the partner bearing fewer centromeres will attach more frequently to the spindle pole that is less efficient in capturing centromeres, favoring metacentric chromosome transmission.
Sex and neo-sex chromosomes in Orthoptera: a review
The karyotype of this species is identical to that reported here for the Caucasian snow vole, including the possession of a metacentric chromosome 26.
Karyotypes of four species of rodents (Muridae: Arvicolinae) from the Azerbaijan Republic
Chromosome 1 the largest metacentric chromosome was easily discriminated at mitotic metaphase cells without any staining and any molecular cytogenetic techniques employed.
Random PCR of Micro-dissected Chromosome Amplified Predominantly Repeated DNA in Lilium tigrinum

Dictionary browser ?
Full browser ?