Fig. 4. Reduced expression of X-linked oocyte-specific genes. Relative abundance of autosomal- and X-linked oocyte-enriched mRNAs (A) and autosomal- and X-linked somatic mRNAs (B) were determined for each chromosome as described in Materials and Methods, and plotted with standard errors. The number of genes used in the calculation for each chromosome is listed in parentheses.