Not at all. 100% of the genomic DNA of the child comes from the two parents. This is where all the genes that determine rejection live. The mitochondria are act

Not at all. 100% of the genomic DNA of the child comes from the two parents. This is where all the genes that determine rejection live. The mitochondria are actually a completely separate organism that live inside our cells and perform a useful function - they are often fairly diverse anyway.