by Public Library of Science Phenotypic analysis of Mycn mutants. Morphology of the whole intestine visualized via HE staining for the WT and mycn mutant embryo sections at 4 dpf. Black arrows indicate goblet cells in the WT intestines. Sections were cut along the sagittal plane. Credit: Li Y-F et al, 2022, PLOS Biology, CC-BY 4.0...