Introduction / Piper M. Treuting, Suzanne M. Dintzis and Kathleen S. Montine -- Phenotyping / Cory F. Brayton and Piper M. Treuting -- Necropsy and histology / Sue E. Knoblaugh and Julie ...
A protein called COUP-TFII determines whether a mouse embryo develops a male reproductive tract, according to new research. The discovery changes the long-standing belief that an embryo will ...