Question

During DNA replication process, deoxyribonucleoside triphosphate acts as:

• A. Substrate
• B. Energy source
• C. Enzyme
• D. Both a and b

Answer 1

The correct option is D Both a and b

Deoxyribonucleoside triphosphates serve dual purposes. They serve as substrates i.e., nucleotides during replication and also provide energy for polymerization reaction by cleavage of high energy terminal phosphates bond or we say they provide energy for polymerisation reaction, the two terminal phosphates in a deoxynucleoside triphosphates are high-energy phosphates, same as in the case of ATP.