Contact: Barbara K. Kennedy
Caption: The scientists detected the expression of 1,370 genes in brains on embryonic day 18 (E18), and the expression of 1,373 genes in the brains at post-natal day seven (P7). Among the genes detected on embryonic day 18, the scientists detected the expression of 396 genes that were not detected on post-natal day seven. Among the genes detected on post-natal day seven, the expression of 399 genes was not detect on embryonic day 18. This differential activity suggests that different processes are active in the brain at these two stages of brain development.
Credit: Christina Manbeck, Penn State
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