which way does dna build
Best Answer: DNA polymerase move 5' to 3'. RNA polymerase moves from 3' to 5' I found this answer: The 2 strands of DNA are antiparallel. That is to say they run in opposite directions. The 5' and 3' designations refer to the carbon position of the backbone sugar deoxyribose. Deoxyribose has 5 carbons.