Question

Select the best answer for the question.

8. What is the role of the enzyme primase in DNA replication?
A. Primase relaxes the DNA double helix so that other enzymes can
reach the DNA.
B. Primase initializes replication by building short RNA primers
complementary to the template.
C. Primase is the enzyme that connects the ribosome to the DNA.
D. Primase seals any gaps between Okazaki fragments or other
fragments of DNA.

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Answer 1

The correct answer is B.

Answer 2

The correct answer will be option B (Making short RNA primers)

Step-by-step explanation:

Primase is a RNA Polymerase enzyme involved in the replication of DNA in organisms. for e.g- Dna-G (Prokaryotes) or AEP (Archaeo-Eukaryote Primase).

Role of primase in replication

1.Primase enzymes are activated by Helicase and form primosome complex.

2. Primase then synthesizes primers- short RNA molecules from ss-template DNA of 4-15 nucleotides long.

3.These primers are recognised by the enzyme DNA polymerase which adds and elonagte by adding nucleotides to the primer.

thus, option B is correct.