21. The Northern blotting method is commonly used for detection of (A) proteins (B) DNA (C) RNA (D) lipids (E) carbohydrates.

4. Which of the following descriptions about the Michaelis-Menten rate equation is incorrect ? (A) KM measures the substrate concentration at which the reaction rate is Vmax/2 (B) kcat is the turnover number that measures the rate of the catalytic process (C) The ratio kcat/KM is a convenient measure of enzyme efficiency (D) kcat = Vmax/[Enz] (E) A competitive inhibitor decreases the apparent KM.

21. The Northern blotting method is commonly used for detection of
(A) proteins
(B) DNA
(C) RNA
(D) lipids
(E) carbohydrates.

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