Who carries the twin gene mom or dad?

Mum or Dad could be carrying the twin gene it doesnt matter about sexes. Normally being able to have twins is when it skips a generation therefore if your grandparents were a twin or had brothers or sisters that were twins it generally means you have move of a chance to have twins other than your parents do although they can do. Also you have a higher risk of twins when doing IVF or having a baby when you are older.