Fig. 6. Cyclic expression of deltaC, her1 and her7 in the presomitic mesoderm is disrupted in RPTPmo-injected embryos. Histogram shows number of embryos affected dependent on concentration of injected morpholino (uninjected; control, 10 ng/embryo; RPTPmo, 1-8 ng/embryo (from right to left)]. Phenotypes are classified into four groups: wild-type expression pattern (blue), partial clock arrest phenotype (red), complete clock arrest phenotype (yellow) and gastrulation defect (sky blue).