Krox-20

Marked reduction or elimination of rhombomeres 3 and 5 in the developing hindbrain

Fusion of the trigeminal ganglion with the facial and vestibular ganglia

Fusion of the superior ganglia of glossopharyngeal and vagus nerves

Death during first two weeks after birth

((krox-20))

	Line Name	DNA Construct
1.	Krox-20 (-/-)	A 10-kb genomic fragment spanning the Krox-20 gene from the BglII site located 4 kb 5' of the transcription initiation site of the SpeI site locate....
2.	Krox-20 (+/-)	A 10-kb genomic fragment spanning the Krox-20 gene from the BglII site located 4 kb 5' of the transcription initiation site of the SpeI site locate....
3.	Krox-20 (-/-)	A 10-kb genomic fragment spanning the Krox-20 gene from the BglII site located 4 kb 5' of the transcription initiation site of the SpeI site locate....