Question

Rna polymerase uses the _______ dna template to synthesize a _______ mrna.

Answer 1

The correct answer is - 3' to 5' , 5' to 3'.

Step-by-step explanation:

The process of transcription is responsible for the formation of RNA from DNA and RNA polymerase is the enzyme that is responsible for the addition of new nucleotide in synthesizing RNA.

RNA polymerase reads the DNA template in 3' to 5' direction and synthesize the new RNA strand in 5' to 3' direction. The new nucleotide added to 3' hydroxyl group of existing nucleotide chain by phosphodiester bond. In RNA thymine is replaced by uracil.

Therefore RNA polymerase uses the 3' to 5' DNA template to synthesize a 5' to 3' mRNA.

Answer 2

3´ to 5´ DNA template

5´ to 3´ mRNA

Step-by-step explanation:

The RNA polymerase is the enzyme that catalyzes the formation of mRNA using the DNA strand as a template. The two DNA strands have opposite polarity means that 5' end of one DNA strand is present opposite to the 3' end of another DNA strand. RNA polymerase uses only 3' to 5' DNA strand as a template to make 5' to 3' primary transcript. The 3' to 5' DNA strand that serves as the template is called a non-coding strand while another DNA strand with 5' to 3' polarity that does not serve as the template is called the coding strand.