Bulgaria PHP Group: Introduction to Design Patterns. Published on February 12, 2016 by Bill Sanders in Beginning PHP OOP, Design Patterns, Factory Method and Template Method.
The only way to have the same DNA of another person is if you and that other person came from the same sperm-egg combination (identical twins, triplets, etc, clones). They are still different though, but are good for organ transplants if you need one. Because your parents only pass on one allele for a specific trait.
The answer to this question is usually that siblings share 50% of their DNA. But this is misleading. Depending on how you count rearrangements, deletions and neutral codon assignment changes, all human genomes are between 99.0 and 99.9% identical [1] .