The U.S. Constitutionâs 10th Amendment is arguably the most important of all the amendments in the brilliant document that helped shape the United States.
Not even identical twins have the same DNA--although theirs would be far closer than anyone else's. DNA changes over time. Odds of two siblings having the same DNA who did not split from the same zygote are vanishingly small.
No two people have the same exact DNA, with the exception of identical twins. However, of all the people in the world, the person that is related the most to you, scientifically speaking, is any sibling of yours. They are 99% alike to you. That 1% is some other alleles that are different between you and them.