4. How is the extent of supercoiling measured? (A) Lk – Lk0 (B) Lk – Lk0 + Wr (C) Lk0 – Lk (D) Lk0 – Lk + Wr (E) Lk + Lk0 + Wr

10. Which of the followings is not true? (A) Hemoglobin is a homologue of myoglobin (B) Hemoglobin is a tetramer whereas myoglobin is a monomer. (C) Hemoglobin exhibits a sigmoidal O saturation curve while myoglobin exhibits a hyperbolic curve. (D) Hemoglobin exhibits O 2 binding cooperativity while myoglobin does not. (E) Hemoglobin exhibits a higher degree of O 2 saturation at all physiologically relevant partial pressures of O 2 than does myoglobin.

4. How is the extent of supercoiling measured?
(A) Lk – Lk₀
(B) Lk – Lk₀ + Wr
(C) Lk₀ – Lk
(D) Lk₀ – Lk + Wr
(E) Lk + Lk₀ + Wr

相關試題

相關試卷