Question

What is the function of RNAP Bridge?

A. Dynamically changes its conformation with each cycle of new nucleotide addition; keeps in contact with the growing RNA strand as the enzyme moves forward

B. Causes DNA bend; bending of DNA helps melt the strands and flip bases in the template strand to be accessible

C. Blocks exit of the nascent RNA transcript

D. Protects the first nucleotides as they form the first phosphodiester bond

Answer 1

The function of the RNAP bridge is to dynamically change its conformation with each cycle of new nucleotide addition and keep in contact with the growing RNA strand as the enzyme moves forward.

Step-by-step explanation:

The function of the RNAP bridge is to dynamically change its conformation with each cycle of new nucleotide addition and keep in contact with the growing RNA strand as the enzyme moves forward. This allows for the efficient synthesis of RNA.

The RNAP bridge is not involved in causing DNA bend or blocking the exit of the nascent RNA transcript. It also does not protect the first nucleotides as they form the first phosphodiester bond.