Fig. 1. Cx38 RNA was symmetrically distributed in the 16-cell stage embryo. Embryos were separated into animal and vegetal parts and RNA was analyzed by northern blot. The Vg-1 antisense probe was used as a marker for transcripts from vegetal cells. Cx38 transcripts were equally abundant in animal and vegetal cells. Ribosomal RNA was used as a loading control (data not shown).

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