What are the 2 processes associated with cell differentiation?

There are two components of this process: turning off the expression of embryonic stem cell (ESC) genes and the activation of cell fate genes.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.