Intercellular NOR-Ag variability in man. I. Technical improvements and marker acrocentric chromosomes

|January 1, 1984

Abstract:

A new modification of the Ag I technique has been developed using human cultured blood lymphocytes, which involves ultra-violet irradiation of chromosome preparations during incubation in AgNO3. This technique enables detection in a short incubation time all NORs capable of being stained with silver. A peculiar morphological change in Ag-stainable NORs during the incubation is described, which can be used as a criterion of the completion of Ag staining. With the refined Ag-staining procedure, acrocentric marker chromosomes were studied which showed one or two satellite stalks within the same individual. Ag staining was highly coincident with this variability.

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Abstract:

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