In article <38170770.7DEE5FA6 at home.com>, sripathi at home.com wrote: > Why does DNA replicate only in the 5'-3' direction and not in the 3'-5' > direction? > > Sri Here's a cryptic answer (is this a homework problem?): It's energetically favorable to proofread in a 3' to 5' direction! -- My 2 electrons, Brian Remove "REMOVE" to reply