In DNA replication, the process is described as copying DNA with the help of which component?

In DNA replication, the process is described as copying DNA with the help of which component?

• A. Enzymes
• B. Lipids
• C. Carbohydrates
• D. Nucleotides

Answer: (A)

DNA replication relies on enzymes to copy the DNA. These proteins act as catalysts and organizers of the process: helicase unwinds the double helix to expose the template strands, primase lays down RNA primers, DNA polymerase adds complementary nucleotides to build the new strands, and ligase seals the gaps in the sugar-phosphate backbone. While nucleotides are the building blocks used to form the new DNA, they aren’t the agents that drive the copying process by themselves; lipids and carbohydrates are not involved in the actual copying reaction. So, the component described as helping the copying process is enzymes—the molecular machines that orchestrate and carry out DNA replication.

DNA replication relies on enzymes to copy the DNA. These proteins act as catalysts and organizers of the process: helicase unwinds the double helix to expose the template strands, primase lays down RNA primers, DNA polymerase adds complementary nucleotides to build the new strands, and ligase seals the gaps in the sugar-phosphate backbone. While nucleotides are the building blocks used to form the new DNA, they aren’t the agents that drive the copying process by themselves; lipids and carbohydrates are not involved in the actual copying reaction. So, the component described as helping the copying process is enzymes—the molecular machines that orchestrate and carry out DNA replication.