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chromatid
(redirected from Chromatids)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.02 sec.
chromatid /chro·ma·tid/ (kro´mah-tid) either of two parallel, spiral filaments joined at the centromere which make up a chromosome.
chro·ma·tid (krm-td)
n.
Either of the two daughter strands of a duplicated 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.
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.


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? Mentioned in ? References in periodicals archive
 
Through a process of 'crossing over', the segments of non-sister chromatids of a homologous pair of homologous dyads are exchanged.
Origin of genetic information and evolution of biological species by Wahid, Pallacken Abdul / Islam & Science
Individuals in the exposed group presented a frequency of single chromatid-type alterations seven times higher than those involving both chromatids.
Cytogenetic monitoring in a population occupationally exposed to ... by Leone, Paola E. / Environmental Health Perspectives
Next, maternal sister chromatids pair up with their paternal counterparts, usually exchanging stretches of DNA before the first cell division in meiosis separates the maternal and paternal chromosomes into two cells.
Absent protein causes chromosomal breakup by Travis, John / Science News
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