TABLE 1.

Chordin Expression Correlates With the Presence of Pronephros in Ultraviolet-Irradiated Embryos^a

Average DAI score	% expressing chordin	% with pronephros
0.5 (n = 79)	8	9
1.3 (n = 96)	39	48
2.0 (n = 97)	90	89
2.5 (n = 37)	88	82
3.0 (n = 31)	93	86
3.3 (n = 38)	100	83
3.7 (n = 36)	86	97
DAI	% expressing goosecoid	% with pronephros
2.2 (n = 151)	0	86
3.3 (n = 75)	25	90

^aSee Figure 1.