title: Statistics of sequence homology.
mesh_terms: D001483:Base Sequence; D001669:Biochemical Phenomena; D001671:Biochemistry; D003090:Coliphages; D004926:Escherichia coli; D012335:RNA, Ribosomal; D012367:RNA, Viral; D013045:Species Specificity; D013223:Statistics as Topic
chemical_list: D012335:RNA, Ribosomal; D012367:RNA, Viral