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The Rho family of small GTP-binding proteins are important signaling molecules that regulate the dynamics of the actin cytoskeleton and mediate changes in cell morphology and motility. Here, we describe the temporal and spatial patterns of expression of the Rho family member, rac, during the development of the amphibian, Xenopus laevis. We also present the(More)
Many marine organisms spend the early part of their lives as larvae suspended in the water column before metamorphosing into benthic reproductive adults. Metamorphosis does not occur until a larva has become competent to respond to appropriate stimuli and after a suitable habitat for the young juvenile has been encountered. The gaseous neurotransmitter(More)
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