(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.



Fig. 8. Ras-dva downregulation, in contrast to Ras, is unable to interrupt FGF signaling in the posterior regions of the embryo. (A,A') Microinjection of DN-RasS17N results in inhibition of the mesoderm marker Brachyury (Bra) around the blastopore at the midgastrula stage (black arrowheads). (B,B') By contrast, DN-Ras-dvaT22N has no influence upon Bra expression.