Teaching MPPSC Assistant Professor Mock Test Series 2025 Life Sciences Methods in Biology Electrophysiological methods
A 120 kDa protein complex consists of a homodimer formed by a 60 kDa protein linked by non-covalent interactions, and two other proteins of 30 and 30 kDa, respectively. The complex was isolated and analyzed on an SDS-PAGE gel without β-mercaptoethanol in the gel loading dye. Which one of the following options would represent the SDS-PAGE profile?
1
Three bands corresponding to 30, 30, and 60 kDa
2
One band corresponding to 120 kDa
3
Two bands corresponding to 40 kDa and 80 kDa
4
Two bands corresponding to 40 kDa and 30 kDa