Figure 2

Lack of global X -chromosome inactivation in developing testes. Expression of X-linked (orange) and autosomal (blue) genes was measured as signal intensity of corresponding microarray probes, after normalization. cDNAs hybridized to the microarrays were isolated from testes of either feeding (f) or wandering (w) larvae grown for the indicated number of days at 18°C. The analysis traces the first wave of germline differentiation; pupation indicative of the meiotic divisions occurred at day 11.