β-galactosidase expression activated by B6.EIIa-cre at embryonic day 15.5
 A) E15.5 embryo at 2X magnification. β-gal expression is variable throughout the body. |
 B) The same embryo from A, at 2X magnification, showing the abdominal region. |
 C) The same embryo from A, at 2X magnification, showing the limbs. |
 D) β-gal expression is strong but restricted in the developing E15.5 liver (20X magnification). |
 E) β-gal expression is also strong but restricted in the developing E15.5 lung (20X magnification). |
 F) β-gal expression is variable in the developing E15.5 stomach (20X magnification). |
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