Why dna compromised radiometric dating
These non-diagnostic bones were selected from amongst material excavated from the cave’s East Gallery in 2014.
The remains varied in size, generally ranging between 3–5 cm, with bones which were large enough to be useful for additional analyses (i.e.
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DNA sequencing has revolutionised our understanding of archaic humans during the Middle and Upper Palaeolithic.
radiocarbon and DNA analysis) preferentially selected. In the recent past, Zoo MS analysis has been successful in discriminating between a diverse range of mammalian groups, including domesticated taxa.
COL1 is comprised of three polypeptide chains, known as alpha chains, which are constructed of a repeating pattern of amino acids.
Excavations undertaken by the Russian Academy of Sciences have been ongoing for more than three decades, revealing a 4.5 metre stratigraphic sequence that is key to archaeological, geological, faunal, palynological and chronological reconstructions of the Altai during the Pleistocene.
While this sequence has been pivotal in our understanding of Pleistocene environments, it is the hominin fossil record of the site that has become the focus of much attention.
To circumvent this problem we have applied a method of collagen fingerprinting to more than 2000 fragmented bones from the site of Denisova Cave, Russia, in order to facilitate the discovery of human remains.
As a result of our analysis a single hominin bone (Denisova 11) was identified, supported through in-depth peptide sequencing analysis, and found to carry mitochondrial DNA of the Neandertal type.