Analysis of the accumulation of

GATA-1 gene nuclear RNA and XIST RNA and of the ploidy level in polyploid megakaryocytes from male and female individuals.The experiments were performed and the results are presented as in Figure 1A except that a GATA-1 or XIST probe and a centromeric probe for chromosome X (Oncor) were used. M indicates male; F, female. 2N, 8N indicate the ploidy level. Original magnification × 60.