Question

Why can dna be matched to the person it came from

Answer 1

Answer:

Since every person inherited DNA from their parents, who inherited it from their parents, and so on, a person's DNA is made up of the DNA of their ancestors. If you and another person both have the same ancestor, there's a chance that you both inherited some of the same DNA.

Explanation:

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Answer 2

Every person inherited there DNA from there parents and each of there own separate cells. There for if i persons DNA is taken they can test for the cells and trace it back to a person