Assertion: uracil | /r/HasProperty | excised
Facets:
Source sentences:
text: Although uracils are excised and DNA strands cleaved at abasic sites (and therefore miscoding substitutions mostly removed from the DNA molecules), the UDG and Endo VIII treatment of ancient DNA leaves a trace in the alignment one nucleotide upstream and downstream of the analysed DNA molecules when compared with the average base composition in the genome.