Is this true about twins?

shhhhh

They need to be on the mother's side to be hereditary?  My FIL is a twin. 

MNheidi

That is the truth.  Fraternal twins are passed through the your side of the family only.  Identical twins could happen to anyone.

amygdala

The hereditary aspect is for fraternal twins only & is on the mother's side. ?It relates to the tendency to ovulate multiple eggs per cycle, which can be hereditary. ?Identical twins are just a random fluke.

shhhhh

THANK YOU!  phew!  FIL is an identical twin and obviously not on my side.

FaeryStarGazer

Yup, you're FIL has nothing to do with the way you ovulate. You need to ovualte two eggs to get fraternal twins, and you get your cycles from your mother who got it from her mother and so on.

Identicals however, those kiddos just show up out of nowhere. Trust me.

 

tina623

Yep.  ID twins are an act of God.  Fraternal are genetic.

mel&greg

I second Mrs.Lee.  I have fraternal twins on my dad's side and my doctor confirmed they can be passed down from your father's side.  I am also biology teacher who has taught this stuff for years.   Your dad would be considered a carrier for the hyperovulation gene but obviously doesn't display the trait since he doesn't ovulate.  He can however pass it to his daughters. 

 Fraternal twins are a result of ovulating two eggs so twins in your husbands family have no effect.