The interactions of ligands with proteins are ___________
(a) Relatively nonspecific
(b) Relatively rare in biological systems
(c) Usually irreversible
(d) Usually transient
This question was posed to me at a job interview.
This question is from Reversible Binding of a Protein to a Ligand: Oxygen-Binding Proteins in chapter Three Dimensional Structure Of Proteins and Protein Function of Biochemistry