Fig. 2

Cytogenetic karyotype from cultivated lymphocytes previously stimulated with phytohemagglutinin. Karyotype 46,XX,del(13)(q12q21)[6]/46,XX[44]. A A majority cell line (44 cells): 46 chromosomes whose identification with G bands (resolution level of 400–500 bands) does not show numerical or structural alterations (46, XX). B A minor cell line (6 cells): 46 chromosomes but shows the presence of an interstitial deletion in the long arm of chromosome 13