Here is a link to an article at National Geographic that explains why siblings can have different autosomal DNA. Although the word is never mentioned in this article, it is about AUTOSOMAL DNA. Mitochrondial DNA (mtDNA) and Y chromosome DNA (Y-DNA) does not combine with any other DNA so those two types of DNA do not dilute from generation to generation. Your mtDNA will be almost exactly the same as your mother's mtDNA, and if you are male, your Y-DNA will be almost exactly the same as your father's Y-DNA.
The Phillips DNA Project News
Siblings can have surprising different autosomal DNA
- Category: Latest
- Written by Nancy Kiser