Question

In E . coli, which enzyme catalyzes the elongation of a new DNA strand in the 5'→ 3 ' direction? (A) primase (B) DNA ligase (C) DNA polymerase III (D) helicase

Answer 1

DNA polymerase III is the enzyme that catalyzes the elongation of a new DNA strand in the 5'→ 3 ' direction.

DNA replication is the primary method by which DNA polymerase creates new DNA. Maintaining and passing genetic information from one generation to the next is made possible because of this process. DNA polymerase replicates two DNA strands simultaneously while working in pairs. These enzymes supplement the developing DNA strand by adding deoxyribonucleotides to the 3′-OH group. By virtue of their polymerization activity, the DNA strand extends in a 5'–3' direction. Guanine pairs with cytosine, while adenine pairs with thymine. They require a primer for replication process.

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