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4% agarose gel electrophoresis of RFLP with ethidium bromide staining of IL-1+4845. Lanes 2, 3, 5: homozygous for allele 1 (124 bp); lanes 4, 6, 7: heterozygous for the allele 1 and 2 (124 bp and 153 bp). lane 8-100 bp ladder. Lane numbering proceds from right to left
