+D1a is a human [Y-DNA](/wiki/y-dna) haplogroup, a genetic marker tracing paternal lineage. Its origins speak to ancient human migrations, with its predominant presence found among [East Asian](/wiki/east_asian) populations.
+## See also
+- [Haplogroup](/wiki/haplogroup)
+- [Human Migration](/wiki/human_migration)
+- [Genetics](/wiki/genetics)
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