Now, as the red blood cells produce the beta subunit, what happens is that beta subbune will basically displace and replace the alpha hemoglobin stabilizing protein. It will basically kick off this protein and form the alpha beta dimer. And that's because if we examine the energy value of the alpha beta dimer and the alpha Ahsp complex, this will have a higher energy and will be slightly less stable than the alpha beta dimer. And because of this energy difference, that basically drives the equilibrium towards the side where we form that alpha beta dimer. So this is described in the following diagram. So initially, we have an access amount of alpha subunits.