Fig. 7. Tbx5 and Tbx20 are not required for the expression of
each other. Embryos injected at the one-cell stage with ControlMO, TBX5MO or
TBX20MO. (A,C) Whole-mount in situ hybridization showing Tbx5
expression. (B,D) Whole-mount in situ hybridization showing Tbx20
expression.