0 votes 0 votes $2$-mercaptoethanol breaks the $\_\_\_\_\_\_\_$ covalent bond between light and heavy chains of an immunoglobulin molecule. $\text{C-N}$ $\text{N-O}$ $\text{S-C}$ $\text{S-S}$ Others gatebt-2024 + – admin asked Mar 25 • edited Mar 27 by makhdoom ghaya admin 2.7k points answer comment Share Follow See all 0 reply Please log in or register to add a comment.