Assertion: mutant dna polymerase | /r/HasProperty | i proteins
Facets:
Source sentences:
text: The mutant DNA polymerase I proteins encoded by these conditional lethal alleles are defective in the 5' to 3' exonuclease activity, demonstrating that this activity is required for cell viability.
text: The mutant DNA polymerase I proteins encoded by these conditional lethal alleles are defective in the 5' to 3' exonuclease activity, demonstrating that this activity is required for cell viability.