Time-course experiments of alternatively spliced Egfr and mTor transcripts. Detailed expression analyses of gene and exon expressions of Egfr and mTor are shown in the gel image. Using a series of cDNAs; from Day 0–12, exon expressions were examined. At the same time, gene expressions were quantified by the densitometric analyses of total transcripts. Graphical representations of gene or exon expressions are shown in the upper panel and lower panel, respectively. Error bars indicate the standard errors.