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.
Each sibling gets the same distribution of parental DNA in terms of percentages. That is, each sibling gets half of their DNA from the mother and half from the father*. However, each sibling gets different parts of the two parents' DNA. It always adds up to 50:50, but if you have a gene where the father has the two versions A and a and the mother has the two versions B and b, you could have siblings that end up with AB, Ab, aB, or ab.