Question

Enzymes that synthesize dna or rna can synthesize in a _____ direction.

Answer 1

The answer is 5'-3'.

Enzymes that synthesise DNA are called DNA polymerases. They move along DNA strand in 3'-5' direction so that newly synthesised DNA strand is in 5'-3' direction.
Enzymes that synthesise RNA are called RNA polymerases. They move along a template DNA strand in 3'-5' direction so that newly synthesised RNA is in 5'-3' direction.