The illustration below shows several oxygendissociation curv

The illustration below shows several oxygen-dissociation curves. Assume that curve 3 corresponds to hemoglobin with physiological concentrations of CO₂ and 2,3-BPG at pH 7.

Which curve(s) represent(s) a loss of quaternary structure?

Curve 1

Curve 2

Curve 4

Curves 1 and 2

Curves 2 and 4

Solution

Answer is \"d\".

Curves 2 and 4 representing the a loss of quartenary structures of a protein.