The rule is, once a rollover is completed and a 72(t) is setup to pay out an income stream, it must continue until the age of 59 Â½ has been reached or for a minimum of 5 years, whichever comes last. For example, if you start a 72(t) at the age of 57, it must run until you are age 62, then it stops.
Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division. If all conditions are ideal, the cell is now ready to move into the first phase of mitosis.
Mitosis is the part of the cell cycle when the cell prepares for and completes cell division. During interphase, appropriate cellular components are copied. Interphase is also a time of checkpoints to make sure that the cell is ready to proceed into mitosis. Both of these two phases have further sub-divisions.