sister chromatids


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sister chromatids

[′sis·tər ′krō·mə‚tədz]
(cell and molecular biology)
The two daughter strands of a chromosome after it has duplicated.
References in periodicals archive ?
Because the kinetochores are directly responsible for segregating chromatids during mitosis, a tempting hypothesis is that the asymmetric segregation is involved in nonrandom segregation of sister chromatids to daughter cells immediately after meiosis.
The SDR gametes contain sister chromatids from the centromere to the
The centromere is the part of a chromosome that links sister chromatids.
It was possible to identify chromosomes with double B and/or G on the same chromatid, as also B and/or G in both sister chromatids.
Embryos whose polar bodies had a reciprocal chromosomal abnormality are almost always euploid: a result of correction of premature separation of sister chromatids (PSSC)(O-203) Eric Forman Oral - Tuesday 4:55-5:15 p.
Accurate chromosome segregation requires that chromosomes be bi-oriented, so we begin testing the model by attempting to describe the orientation of the sister chromatids in mitosis and that of the two synapsed chromosomes in meiosis.
The appearance of a chromosome-type break, where two sister chromatids are broken at the same site, might be attributable to failure of HR to complete DSB repair, leading to the occurrence of a DSB in the other intact sister chromatid during the condensation of chromosome towards the M phase (Sonoda et al.
In addition, we found that, although sister chromatids enter meiosis in very close proximity to one another, Pds5 acts to inhibit synapsis between them, a good thing because, then, meiotic conditions support the necessary pairing of homologs," he added.
1] cells contained chromosomes with both sister chromatids stained uniformly dark.
Localization of heteromorphisms of FISH-rDNA between homologue chromosomes and between sister chromatids, and the presence of interstitial hybridization signals was found in metacentric and onto submetacentric chromosomes.
Previous reports indicated that the origin of CYP2D6*5 is an unequal crossover between the 2 sister chromatids.