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Read the passage.
What is the central idea of this passage?
O Ötzi lived during the Neolithic age.
The family line of Ötzi's mother is very complex,
O Ötzi's DNA is too complex to study in a lab setting.
The family line of Ötzi's father is common in Europe.
lozis
It remains to be explained why Ötzi's maternal lineage
[mother's family line) has disappeared, while his
paternal lineage [father's family line)-named G2a-still
exists in Europe. To clarify this point, researchers at
EURAC compared Ötzi's ... DNA with available
data from numerous ancient samples found at 14
different archaeological sites throughout Europe. The
results showed that the paternal lineage of Ötzi' was
very common in different regions in Europe during the
Neolithic Age, while his maternal lineage probably
existed only in the Alps.
-"New Discoveries Concerning Ötzi's Genetic History,"
European Academy of Bozen/Bolzano (EURAC)
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