+74 You share the same amount of DNA with your first cousin as you do with a half-sibling, but we act differently towards each of them in terms of relationship/friendships, amirite?

by Anonymous 3 years ago

...only if your parent has an identical twin...

by Anonymous 3 years ago

Or an identical grandfather

by Anonymous 3 years ago

1000000000 out of 1200000000

by Anonymous 3 years ago