A new DNA strand elongates only in the 5' to 3' direction because A new DNA strand elongates only in the 5' to 3' direction because replication must progress toward the replication fork. DNA polymerase can only add nucleotides to the free 3' end. DNA polymerase begins adding nucleotides at the 5' end of the template. Okazaki fragments prevent elongation in the 3' to 5' direction.

Question

Anahi Esparza

Biology

18 October, 03:45

A new DNA strand elongates only in the 5' to 3' direction because A new DNA strand elongates only in the 5' to 3' direction because replication must progress toward the replication fork. DNA polymerase can only add nucleotides to the free 3' end. DNA polymerase begins adding nucleotides at the 5' end of the template. Okazaki fragments prevent elongation in the 3' to 5' direction.

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Answers (1)

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Mario Payne · Answer 1

The correct answer will be option-DNA polymerase can only add nucleotides to the free 3' end

Explanation:

DNA replication process produces the exact copy of DNA which requires various enzymes. The function of adding a nucleotide to the daughter strand is performed by the enzyme called DNA polymerase.

The DNA polymerase enzyme catalyses the process of DNA replication which requires energy provided by the dNTP. The enzyme adds new nucleotides at 3'-OH end of the DNA which favour the reaction energetically.

Thus, the new DNA strand appears to be elongated in the 5' to 3' direction.