Fig. 3. Impaired mammary gland development in biparous
Erbb4Flox/FloxWap-Cre mice. Wholemounts of carmine stained
mammary glands from biparous Erbb4+/+Wap-Cre
(A,C,E) and Erbb4Flox/FloxWap-Cre (B,D,F) mice at P13.5
(A,B), P18.5 (C,D) and L1 (E,F). Alveolar clusters are indicated by arrows and
normal distention of mammary ducts is indicated by arrowheads. Scale bar: 500
µm.