Reporter:	lacZ
	Direct Detection

Structure	Level	Pattern	Image	Note
TS15: 1st branchial arch mandibular component	Present		3a A
TS15: 1st branchial arch maxillary component	Present		3a A
TS15: future forebrain	Present		3a A
TS15: optic vesicle	Present		3a A
TS15: otocyst	Present		3a A
TS15: somite	Present		3a A
TS15: telencephalon	Present		3a A

Structure	Level	Pattern	Image	Note
TS17: 1st branchial arch mandibular component	Present		3a B
TS17: 2nd branchial arch	Present		3a B
TS17: forelimb bud	Present		3a B
TS17: hindlimb bud	Present		3a B
TS17: somite	Present		3a B
TS17: telencephalon	Present		3a B
TS17: brain	Present	Regionally restricted	3a B	Expression is in the tectorial regions.
TS17: head	Present	Regionally restricted	3a B	Expressionis in the region surrounding the olfactory pit.
TS17: cranial nerve	Present	Regionally restricted	3a B	Expression is in the trigeminal nerve.

Structure	Level	Pattern	Image	Note
TS19: eye	Present		3a C
TS19: forelimb bud	Present		3a C
TS19: hindlimb bud	Present		3a C
TS19: nasal pit	Present		3a C
TS19: otocyst	Present		3a C
TS19: somite	Present		3a C
TS19: brain	Present	Regionally restricted	3a C	Expression is in the tectorial and pretectorial regions of the brain.

Structure	Level	Pattern	Image	Note
TS20: cerebral cortex	Present		3a D
TS20: limb	Present		3a D
TS20: tail	Present		3a D

Structure	Level	Pattern	Image	Note
TS21: cerebellum	Present		3a E
TS21: limb	Present		3a E

Structure	Level	Pattern	Image	Note
TS21: spinal cord dorsal horn	Present
TS21: spinal cord ventral horn	Present