Methods And Protocols | Ancient Dna:

Over time, DNA strands break into very short fragments, typically between 30 and 100 base pairs.

Synthetic DNA "adapters" are attached to the ends of the fragments, allowing them to bind to the sequencing platform. Ancient DNA: Methods and Protocols

Software checks for high rates of C-to-T transitions at the ends of DNA fragments. If these "nicks" are present, it’s a signature of authenticity. Over time, DNA strands break into very short

The goal of extraction is to release DNA from the mineral matrix (bone) while removing inhibitors like humic acids. Ancient DNA: Methods and Protocols

The exterior of the bone or tooth is usually mechanically removed (sanding) or treated with bleach and UV light to remove surface contaminants. 3. Extraction Methods

Working with aDNA is fundamentally different from modern genomics due to three primary hurdles: