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Fig. 3. Phenotype of Mll2/ embryos up to the last
observable stage. Litters were taken from E6.5 to E11.5, as indicated, and
stained (A-D) or not (E,F) for ß-galactosidase (E6.5-E9.5).
Intensely staining embryos were homozygous and lighter staining embryos were
heterozygous for the null allele. Staining seems absent from the
extra-embryonic tissues (A,B).