DEAR ABBY: I'm hoping you will settle a bet between me and a good friend. I'm sure you've heard of or seen the advertisements for ancestral DNA testing. I say that three children with the same two parents will all have equal percentages of their parents' ancestry. My friend says the amounts can vary from child to child. Who is right? A nice dinner is riding on this. -- HUNGRY TO KNOW IN MINNESOTA
DEAR HUNGRY: I am sure your friend will enjoy the nice dinner you're paying for. According to Ancestry.com, unless the siblings are identical triplets, the amount of DNA they receive from each parent can vary, and it is not unusual for siblings to have different percentages of their parents' ancestry.