Read the Research Article 'Oscillatory co-expression of HES1 and HES5 enables a hybrid state in a cross-repressive transcription factor regulatory motif' here.
journals.biologists.com/dev/article/...
Highlighted Article: Expression of the cross-repressing proteins HES1 and HES5 is mutually exclusive but when they oscillate, a cell can express both, creating a hybrid state that later resolves into…