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15106 Biochemistry

A protein with molecular weight of 100 kD is subjected to SDS PAGE electrophoresis. The SDS PAGE electrophoresis pattern shows two widely separated bands of 20kD after addition of Mercaptoethanol. The true statement regarding this will be

AThe protein has undergone complete lysis
BThe protein is a monomer of 20kD and 30kD protein
CThe protein is a dimer of two 20kD proteins (Correct Answer)
DThe protein is a tetramer of 20kd and 30kD proteins