Question

fill in the blank question

a strand of mrna is constructed in the to direction.

Explanation:

Identify the direction of nucleic acid synthesis

RNA polymerase synthesizes RNA by adding nucleotides to the 3' end of the growing strand, meaning the strand is constructed in the 5' to 3' direction.

Match the blanks to the sentence structure

The sentence is: "A strand of mRNA is constructed in the [blank 1] to [blank 2] direction."
Therefore, the first blank is "5'" (or "5 prime") and the second blank is "3'" (or "3 prime").

Answer:

A strand of mRNA is constructed in the <blank>5'</blank> to <blank>3'</blank> direction.