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, every persons DNA is different, however, brothers would have very similar DNA. Many traits of the DNA are hereditary, but no two sets of DNA are identical. Much like a thumb print only far more complex.