Twins

Family antecedents

The mother of my maternal grandmother has had 2 sets of twins.

The mother of my maternal grandfather has had 1 set of twins.

My mother has had 3 pregnancies, 0 of which were twins. My mother’s sister has had 4 pregnancies, 0 of which were twins.

General information

non-identical twins are caused by a double ovulation of the mother

so a male genetic parent carrying those genes wouldn’t increase the chances of non-identical twins for their children, but would for their grand-children (

source⁠

)

2 third of twins are non-identical (

source⁠

)

having identical twins doesn’t seem hereditary (whereas having non-identical twins is) (

source⁠

)

Notes to self, to do

check if I’m carrier of those genes

check the number of twins is over how many pregnancies total

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