GATE BT 2025 | Question: 30

Question

Correctly match the Enzyme with its respective Function.
\begin{array}{|l|l|}
\hline \textbf{ Enzyme } & \textbf{ Function } \\
\hline \text{P. Gyrase} & 1. \text{Removes a damaged base} \\ & \text{by cleaving the bond} \\ &
\text{between sugar and base} \\
\hline \text{Q. Deadenylase} & 2. \text{Provides a swivel allowing one DNA} \\ & \text{strand to rotate around the other} \\
\hline \text{R. Glycosylase} & 3. \text{Catalyses bond formation between 3'-OH} \\ &  \text{and 5'-phosphate end of nucleotides in duplex DNA}  \\
\hline \text{S. DNA ligase} & 4. \text{Is an exoribonuclease that removes} \\ & \text{the poly(A) tail} \\  \hline
\end{array}

• A. $\mathrm{P}-2 ; \mathrm{Q}-4 ; \mathrm{R}-1 ; \mathrm{S}-3$
• B. $\mathrm{P}-1 ; \mathrm{Q}-4 ; \mathrm{R}-2 ; \mathrm{S}-3$
• C. $\mathrm{P}-2 ; \mathrm{Q}-1 ; \mathrm{R}-4 ; \mathrm{S}-3$
• D. $\mathrm{P}-3 ; \mathrm{Q}-2 ; \mathrm{R}-1 ; \mathrm{S}-4$