Figure 1. RA is detectable in the developing mouse ovary.
(a,b) LacZ reporter gene activity (a) and expression (b) demonstrated in ovary (XX) but not in testis (XY) dissected from 13.5 d.p.c. RARE-lacZ transgenic embryos (for b, n=4, 6). (c) Expression of known RA target genes in germ cells isolated from 13.5 d.p.c. ovaries (XX) and testes (XY) at 13.5 d.p.c. (n=2). **P<0.01 and ***P<0.001 (Student's t-test, mean+s.e.m. is shown). Scale bar, 200 μm.