Assertion: dna polymerase's substrate | /r/HasProperty | short flap
Facets:
Source sentences:
text: DNA polymerase δ is able to displace up to 2 to 3 nucleotides of DNA or RNA ahead of its polymerization, generating a short "flap" substrate for Fen1, which can remove nucleotides from the flap, one nucleotide at a time.