nervous system
• at E18.5, the corpus callosum is not grossly misshapen but contains ectopic ventrally projecting bundles
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• at E18.5, cortical layer VI is enlarged and the number of deep, early-born Tbr1+ neurons in layer VI is increased, though to a lesser extent than in homozygotes
• preplate definition is altered
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cellular
• at E18.5, the corpus callosum is not grossly misshapen but contains ectopic ventrally projecting bundles
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