The mutation in the KDEL sequence occurred at the third position, where the amino acid Aspartic acid (D) was replaced by Glutamic acid (E). The KDEL sequence is a C-terminal signal that helps proteins return to the endoplasmic reticulum from the Golgi apparatus. The mutation from D to E affects the protein’s recognition and transport function.
Match Fibre with Application.\[\begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \textbf{Fibre} & \textbf{Application} \\ \hline \hline \text{A. Silk fibre} & \text{I. Fire retardant} \\ \hline \text{B. Wool fibre} & \text{II. Directional lustre} \\ \hline \text{C. Nomex fibre} & \text{III. Bulletproof} \\ \hline \text{D. Kevlar fibre} & \text{IV. Thermal insulation} \\ \hline \end{array}\]