Hi,
you can use different technics:
you can flag gameobejct to "DontDestroyOnLoad" using the action of the same name.
this will prevent the gamebject to be deleted as you load a new scene.
if you want the data to persist so that when the player quit and relaunch your game the prefab appears, then you'll need to user PlayerPrefs, which allows you to save data on the device or computer for that game.
Have a go with the above information and see how far you can go with this.
Bye,
Jean