There are two models of protein folding that are currently being confirmed: 1  The diffusion collision model, in which a nucleus is formed, then the secondary structure is formed, and finally these secondary structures are collided together and pack tightly together.
If you do not test within these dates you will have to reregister and repay the examination fee. The ATT contains your authorization number, candidate identification number and an expiration date. You need the ATT to: Schedule an appointment to take the NCLEX examination.
However, laws can change, and some states, like Louisiana, want you to take the MBLEx within two years of applying for a license. This means if you pass the MBLEx today and wait beyond two years to apply to Louisiana, a simple score report and $20 will not suffice. You would need to take the MBLEx again.