Question

what is the function of rna polymerase in protein synthesis?
it brings the trna to the ribosome.
it bonds the dna strand.
it unzips the dna strand.
it translates the dna strand.

Explanation:

RNA polymerase is involved in transcription. During transcription, it binds to the DNA, unwinds (unzips) the double - stranded DNA to expose the template strand for mRNA synthesis.

• The first option (brings tRNA to ribosome) is the function of elongation factors and not RNA polymerase.
• Bonding the DNA strand is not its main function in protein synthesis (related processes like DNA replication have different enzymes for bonding).
• Translation is done by ribosomes, not RNA polymerase.

Answer:

It unzips the DNA strand.