Shared DNA Markers are able to trace the bloodline back to Abraham, which we know is the great great great Grandson of Noah. Then from Noah we know that goes back to Seth and ultimately to Adam.
Shared Genetic Markers:
Studies have identified a set of genetic markers shared among Jewish populations, suggesting a common ancestry rooted in the Middle East.
Distinct Genetic Signatures:
While sharing common genetic markers, each Jewish population (e.g., Ashkenazi, Sephardi, Ethiopian) also exhibits distinct genetic features reflecting their unique histories and migrations.
Biblical Accounts:
The Bible, particularly Genesis 10 and 11, provides genealogies tracing the lineage of Abraham and other biblical figures back to Noah.
DNA and Biblical Data:
Some studies have attempted to align the biblical accounts of genealogy with DNA evidence, finding several similarities.