Motherly Protection (IMAGE)
Caption
University of Iowa biologists have learned animals can alert future offspring of dangers they will encounter when born. The researchers show how mother roundworms pass chemical signals to her unfertilized eggs, where the warning is stored in the egg cells and passed to offspring after conception. This image shows in a roundworm how the chemical signals cause gene expression in the immature eggs that will be later fertilized to become offspring
Credit
Catherine Dvorak, University of Iowa
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