UNIVERSITY OF FLORIDA, FRANCISCA LEAL
(See R. Aires et al., “Oct4 Is a Key Regulator of Vertebrate Trunk Length Diversity,” Developmental Cell, 2016.)
Image of the Day: Spinal Stretch
Even a snake embryo has an unusually long body, seen here coiled into a spiral. The Oct4 gene responsible for this elongated shape stays active far longer than in other vertebrates, including mice.
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