A method is disclosed for determining the chromosomal identity of a sample of genomic DNA. The genomic DNA is amplified and labeled by polymerase chain reaction using primers substantially complementary to interspersed repetitive DNA sequences. The amplified and labeled genomic DNA fragments are then contacted with chromosomal DNA of known identity under conditions in which the chromosome-specific, but not the interspersed repetitive DNA sequences, of the amplified and labeled genomic DNA fragments are available for hybridization. Specific hybridization to chromosomal DNA of known identity determines the chromosomal identity of the sample of genomic DNA.

Um método é divulgado determinando a identidade chromosomal de uma amostra do DNA genomic. O DNA genomic é amplificado e etiquetado pela reação chain do polymerase usando primers substancialmente complementar às seqüências repetitivas interspersed do DNA. Os fragmentos genomic amplificados e etiquetados do DNA são contatados então com DNA chromosomal da identidade sabida sob as circunstâncias em que as seqüências interspersed chromosome-específicas, mas não repetitivas do DNA, dos fragmentos genomic amplificados e etiquetados do DNA estão disponíveis para o hybridization. O hybridization específico ao DNA chromosomal da identidade sabida determina a identidade chromosomal da amostra do DNA genomic.

 
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