Home

Relationship Testing: Do Siblings Have the Same DNA?

Relationship Testing: Do Siblings Have the Same DNA?

DNA contains information that determines eye color, hair color, height, and even the size of your nose. In fact, DNA contained in your cells is responsible for these physical attributes and many more. You and your siblings are a slightly different combination of your mother and father’s DNA. This explains why you and your sibling’s physical features resemble a combination of both parents and why your sister or even brother looks more like your mom than you do.