Probe:	Hex genomic2
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS7: embryo	Absent			There is no detectable expression in the ectoderm of the developing embryo.
TS7: extraembryonic endoderm	Absent			There is no detectable expression in the primary endoderm of the developing embryo.

Structure	Level	Pattern	Image	Note
TS11: chorion	Strong		2A , 2B	Expression is restricted to the chorion of the ectoplacental cavity.
TS11: extraembryonic visceral endoderm	Weak		2B , 2A	Expression is present in the region of the future yolk sac.
TS11: embryo	Absent		2A , 2B

Structure	Level	Pattern	Image	Note
TS16: hepatic primordium	Strong		2D , 2C	Expression is present in the hepatic anlage, interacting with the mesenchyme of the septum transversum.

Structure	Level	Pattern	Image	Note
TS16: thyroid primordium	Strong		2F , 2E

Structure	Level	Pattern	Image	Note
TS20: liver	Strong		2H , 2G
TS20: lung	Weak		2H , 2G

Structure	Level	Pattern	Image	Note
TS20: thyroid gland	Strong		2J , 2I

Structure	Level	Pattern	Image	Note
TS23: liver	Present
TS23: lung	Present
TS23: thyroid gland	Present