Question

List the dual role of deoxyribonucleoside triphosphates in DNA replication.

Answer 1

Deoxyribonucleoside triphosphate may be considered as building blocks in DNA synthesis. Two important role played by dNTPs, during replication are as follows-

• It act as substrate during DNA replication.
• It provides energy for polymerisation reaction. This nucleotide has three phosphate group. During the process of polymerisation two of its phosphate groups break off to provide energy.

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