نتایج جستجو برای: having sister
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sarcoidosis is a granulomatius disease of unknown etiology involving multiple body systems.approximately 10-35% of patients with systemic disease have cutaneous involvement.skin lesions commonly observed in sarcoidosis include:erythema nodosum,macular or parpular rashes,nodules,hypopigmented or hyperpigmented patches,scarsarcoid,lupus pernio,plaques,and rarely mocusal lesions.this report descri...
The presence of inactive units in tandem arrays of ribosomal genes (rDNA) has been linked to increased transcriptional capacity, but a recent study indicates that inactive units are necessary for sister chromatid cohesion and genetic stability of rDNA.
DNA damage (alkaline filter elution) and sister chromatid exchange (SCE) frequencies were measured in lymphocytes of 39 welders and 39 controls. The welders showed a significantly higher rate of DNA single-strand breakages and significantly elevated SCE values. These results are not in accordance with those of a former study in which only DNA-protein cross-links were measured. The different res...
We analyzed whether sister chromatids are continuously aligned in meristematic and endopolyploid Arabidopsis interphase nuclei by studying sister-chromatid alignment at various chromosomal positions. FISH with individual BACs to flow-sorted 4C root and leaf nuclei frequently yielded more than two hybridization signals, indicating incomplete or absent sister-chromatid alignment. Up to 100% of 8C...
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