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A grandparent DNA test verifies a biological grandparent-grandchild relationship when a parent is unavailable for testing. This test is particularly useful for establishing lineage or identity when the child's father or mother cannot be tested.
A grandparent DNA test verifies a biological grandparent-grandchild relationship when a parent is unavailable for testing. This test is particularly useful for establishing lineage or identity when the child's father or mother cannot be tested.