Preprohormone missions (Grand Theft Auto 5)

From the various previews was of old, that mission can be replayed. A question, do all missions after 100% to beat? For example in the ballad of the mission bystanders not pereproyti

So I wonder how this is the case in жта5: is there a mission or task, say so disposable that you can not pass the second time. Or absolutely all missions and tasks can be repeated?