Question

Which enzyme catalyzes the elongation of a DNA strand in the 5' → 3' direction by adding nucleotides to the end of a growing DNA strand? a. DNA ligase b. primase c. DNA polymerase d. topoisomerase e. helicase

Answer 1

Answer:

DNA polymerase

Explanation:

DNA polymerase enzyme catalyses the reaction of adding nucleotide to growing complementary daughter strand of DNA in the direction of 5' → 3' during elongation in the process of replication. This process requires energy which is taken from nucleotides with three phosphate groups in their backbone similar to ATP (adenine triphosphate)

DNA Replication is when DNA multiplies and make exact copies of itself as part of gene transfer.

Answer 2

The enzyme which catalyzes the elongation of a DNA strand in the 5' → 3' direction by adding nucleotides to the end of a growing DNA strand is DNA polymerase

What is an enzyme?

An enzyme is a biological catalyst which speed up the rate of chemical reactions. Below are some few characteristics of enzymes:

• Enzymes are inhibited by inhibitors
• Enzymes help to speed up chemical reactions.
• They are required in minute amounts or small quantities
• They are highly specific in their action.
• Enzymes are also are affected by temperature.
• They are affected by pH.
• Some catalyze reversible reactions.

Therefore, The enzyme which catalyzes the elongation of a DNA strand in the 5' → 3' direction by adding nucleotides to the end of a growing DNA strand is DNA polymerase

Learn more about enzymes:

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