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Researchers use optogenetics to activate and inactivate signaling pathways – News-Medical.net

Proper embryonic development of the fruit fly Drosophila melanogaster is governed by patterns of protein activity bequeathed to the fertilized egg by its mother.

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Proper embryonic development of the fruit fly Drosophila melanogaster is governed by patterns of protein activity bequeathed to the fertilized egg by its mother. While the embryo is still a single cell, the maternal cells surrounding it deposit certain proteins inside it at specific locations.
This establishes protein gradients that direct the development of embryonic features along its anterior-posterior and ventral-dorsal axes. Later, the embryo receives another round of maternal information,…

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