Thread:Salt29/@comment-32823535-20190317180634/@comment-32823535-20190318151939

You aren't into genetics? I love it. Even took a class in college. Basically, you get half of your DNA from your father, and half from your mother. Humans have 23 pairs of chromosomes, one half of the pair from each parent. But it is the luck of the draw as to which of the pair you get - so I get some from each of my grandparents, the most unlikely would be to get like all 23 from my mother's mother and none from my mother's father. In reality, I will get part from my mother's mother and part from my mother's father. So my sister will get a random sample as well. So only about 1/2 of our DNA will match.