2-4 nt.backtracking of Pol II complex on the template leading to elongation pausing (Sus scrofa)
2-4 nt.backtracking of pol ii complex on the template leading to elongation pausing (sus scrofa)
2-4 nt.backtracking of Pol II complex on the template leading to elongation pausing (Sus scrofa)
2-4 nt.backtracking of pol ii complex on the template leading to elongation pausing (sus scrofa)