chromatid


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Related to chromatid: chromomere

chromatid

 [kro´mah-tid]
either of two parallel filaments joined at the centromere that make up a chromosome and that divide in cell division, each going to a different pole of the dividing cell and each becoming a chromosome of one of the two daughter cells.

chro·ma·tid

(krō'mă-tid),
Each of the two strands formed by longitudinal duplication of a chromosome that becomes visible during prophase of mitosis or meiosis; the two chromatids are joined by the still undivided centromere; after the centromere has divided at metaphase and the two chromatids have separated, each chromatid becomes a chromosome.
[G. chrōma, color, + -id (2),]

chromatid

(krō′mə-tĭd)
n.
Either of the two daughter strands of a replicated chromosome that are joined by a single centromere and separate during cell division to become individual chromosomes.

chro·ma·tid

(krō'mă-tid)
Each of the two strands formed by longitudinal duplication of a chromosome that becomes visible during prophase of mitosis or meiosis; the two chromatids are joined by the still undivided centromere; after the centromere has divided at metaphase and the two chromatids have separated, each chromatid becomes a chromosome.
[G. chrōma, color, + -id (2),]

chromatid

One of the two duplicated copies of a chromosome produced by replication while still connected at the CENTROMERE before separation at the subsequent cell division. Each chromatid becomes a new chromosome.
Chromatidclick for a larger image
Fig. 102 Chromatid . (a) Before duplication. (b) After duplication.

chromatid

one of a pair of duplicated CHROMOSOMES produced during the ‘S’ phase of the CELL CYCLE, which are joined together at the CENTROMERE. See Fig. 102 . During nuclear division the centromere splits (in anaphase of mitosis, anaphase 2 of MEIOSIS) to produce two separate chromosomes.
References in periodicals archive ?
DNA replication and sister chromatid cohesion 1 is frequently amplified and overexpressed in hepatocellular carcinoma tumors and cell lines
German, "A manyfold increase in sister chromatid exchanges in Bloom's syndrome lymphocytes," Proceedings of the National Academy of Sciences of the United States of America, vol.
Exposure of Channa punctatus to Dichlorvos (0.01 ppm) caused chromatid gaps, centromeric gaps, attenuation, chromatid breaks, extra fragments, and stubbed arm in kidney cells [25]; while exposure of the same species to fenvalerate caused chromatid separation, chromatid break, deletion, fragments, gaps, and ring type chromosomes [46].
carrying sister chromatids. Consequently, random chromatid segregation
Protective effect of (-)-epigallocatechingallate and (+) catechin on nitrogen oxide-induced sister chromatid exchange.
Relative efficiency of Phyllantus emblica fruit extract and ascorbic acid in modifying lead and aluminiuminduced sister chromatid exchanges in mouse bonemarrow.
Effects of sevofluorane on cell division and levels of sister chromatid exchange.
Types of structural chromosomal aberrations were classified into following groups: chromatid breaks (ctb) chromosome breaks (csb), chromatid and chromosomal gap (ctg) The final results were judged as follows: negative (-) if the frequency of aberrant cells was <5%, inconclusive ([+ or -]) if [greater than or equal to]5 % but <10 % and positive (+) if [greater than or equal to] 10 %.