Cover: X-gal staining pattern of an albino E10.5 transgenic embryo in which a LacZ reporter gene is driven by a genomic fragment containing hypersensitive sites HS2-4 of the PAX6 downstream regulatory region. Strong expression is seen in the neuroretina of the developing eye with weaker expression found in the nasal area. See Article by Kleinjan et al. in this issue, pp. 2049-2059.
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