which is right about the sequential model?
A. all subunits change from one state TT to RRall at once
B. there is a common trigger that changes TT to RR in all
subunits
C. each subunit changes from TT to RR in response to a changing
binding constant.
D. the concentration of the affecter increases causing another
subunit to switch from TT to RR.
E. answer C and D.





