Fig. 4.—
Differential mRNA stability between X-chromosome and autosomal transcripts is conserved in mice. (A) Average half-life of transcripts of all genes on each chromosome in murine fibroblasts (nX = 151, nA = 4,722). A, average half-life of transcripts of all autosomes. X, average half-life of X-chromosome transcripts. Error bars indicate 95% confidence intervals. (B) Frequency distribution of autosomal transcript half-lives. (C) Frequency distribution of X-chromosome transcripts half-lives.