chromatid

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Related to Sister chromatid: Sister chromatid exchange

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

/chro·ma·tid/ (kro´mah-tid) either of two parallel, spiral filaments joined at the centromere which make up a chromosome.

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.

chromatid

[krō′mətid]
Etymology: Gk, chroma, color
one of the two identical, threadlike filaments of a chromosome. Chromatids are produced by the self-replication of the chromosome during interphase and are held together by a common centromere. During anaphase of mitosis and meiosis II, the chromatids separate to become daughter 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.

chromatid

either of two parallel filaments joined at the centromere which make up a chromosome, and which 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.

sister chromatid
a chromatid formed by a replicating chromosome during interphase; because they are derived from the one homolog and joined at the center they are exact copies of each other.
References in periodicals archive ?
High frequency of sister chromatid exchanges in lymphocytes of the patients with Behcet's disease.
Increased sister chromatid exchange (SCE) frequencies in lymphocytes from traffic policemen exposed to automobile exhaust pollution.
Our previous study also presented evidence for the relationship between smoking and enhanced sister chromatid exchanges in traffic policemen (27).
Modulation of mitomycin C-induced sister chromatid exchanges and cell cycle delay by buthionine sulfoximine and reduced glutathione in mouse bone marrow cells in vivo.
Student's t-test was used for the analysis of chromosomal aberrations and sister chromatid exchanges.
Low human exposure to styrene in relation to chromosome breaks, gaps and sister chromatid exchanges.
Sister Chromatid Exchange (SCE) and Structural Chromosome Aberrations in Mutagenicity Testing.
In contrast, both in vivo and in vitro tests on higher organism cell it was observed that nickel produces some genetic abnormalities like DNA strand break, DNA-protein cross links, nucleotide excision, single gene mutations, sister chromatid exchanges, micronuclei, nucleic acid concentration alteration and cell transformation (5,66,67).
Fluoxymeste rone was reported to induce chromosomal aberrations (CAs) and sister chromatid exchanges (SCEs) in cultured human peripheral blood lymphocytes and also increase frequencies of micronuclei and SCEs in bone marrow cells of mice.
4-fold increases were found in chromosome aberrations (12 cases), sister chromatid exchanges (11 cases), and micronuclei frequencies (11 cases), respectively.
Weitberg AB (1989) Effect of combination of antioxidants on phagocyte-induced sister chromatid exchanges.
The kinetochore proteins are organized in stable subcomplexes that bind to dynamic microtubules and ensure fidelity of sister chromatid separation through feedback control.