Question

Ligases is a class of enzymes responsible for catalysing the linking together of two compounds.Which of the following bonds is not catalysed by it?

• A. C-C
• B. P-O
• C. C-O
• D. C-N

Answer 1

The Correct Option is A

Ligases catalyze the formation of bonds between carbon and other atoms like oxygen, nitrogen, sulfur, or phosphorus (C-O, C-N, C-S, C-P). They do not directly catalyze the formation of C-C bonds. Although some ligase-catalyzed reactions might indirectly lead to C-C bond formation in subsequent steps, the direct joining of two carbon atoms isn’t a primary function of ligases.