Ancient DNA. Less cause for grave concern.
Sykes
B
B
D000818:Animals; D000886:Anthropometry; D001842:Bone and Bones / Q000033:anatomy & histology / Q000737:chemistry; D004247:DNA / Q000235:genetics* / Q000302:isolation & purification; D004272:DNA, Mitochondrial / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male; D010163:Paleontology
D004272:DNA, Mitochondrial; D004247:DNA