β-galactosidase expression activated by B6.EIIa-cre in P7 brain
 A) P7 female brain at 2X magnification. β-gal expression in the anterior brain is restricted to specific areas. |
 B) P7 male brain at 2X magnification. β-gal expression in the anterior brain of the male is similar to that of the female. |
 C) P7 female brain at 2X magnification. β-gal expression in the posterior brain is restricted to specific areas. |
 D) P7 male brain at 2X magnification. β-gal expression in the posterior brain of the male is also similar to that of the female. |
 E) Hippocamal region from the sections in A and C, at 20X magnification. |
 F) Hippocamal region from the sections in B and D, at 20X magnification. |
| Note: Any differences between β-gal expression for the male and female samples are just initial observations. No quantification was conducted to determine if a true sex-based difference is present with the B6.EIIa-cre line. Compare to adult brain. | |
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