Family Math 2

 How do you like these Family Math diagrams I made?  I did them for a teacher, so she could hook the youth of our country into genealogy!!

   Actually, I remember growing up with a lot of 1st cousins and 2nd cousins around, and the ones in between I never could understand.

DNA you get from your grandparents:

If you are a woman:  You got around 1/4 of your autosomal DNA from your paternal grandfather. Same for your other 3 grandparents. You did NOT get any of the DNA on your X chromosomes from your paternal grandfather.  This can be  helpful when you are looking at your X-chromosome matches on GEDmatch.  If you have an X match, its not from your paternal grandfather's side.   One of your X chromosomes came directly from your paternal grandmother, and the other is a cross-ove rmix of your maternal grandparents.

If you are a man: You got around 1/4 of your autosomal DNA from each of your grandparents.  You got your Y chromosome from your paternal grandfather.  You got your X chromosome from your mother, and it is a cross-over mix of your maternal grandparents' X chromosomes.  Anyone you is an X match to you, it is on your mother's side.