pubmed:abstractText |
DA-DAPI counterstaining is a technique which reveals the heterochromatic areas of chromosomes 1, 9, 15, 16 and Y in humans; a result which may be related to the peculiar characteristics of these chromosomal regions, particularly regarding their DNA content. The present report describes a different DA-DAPI stain reaction. Obtained under standard conditions, it shows positive, bright staining in a large number of chromosomes. Such a result is discussed in relation to the banding pattern produced by Alu I in human metaphase chromosomes, in view of the high degree of overlapping of the two patterns.
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