Is what they say about Male pattern baldness genetics completely true?

My mothers side are all completely bald since the age of 21, every man! for the past like 6 generations. My Fathers side are completely the opposite, all holding there hair to old age I'm 23, have an abundance of hair no signs of balding in the slightest, my hairs colour, complexion, hair line and... show more My mothers side are all completely bald since the age of 21, every man! for the past like 6 generations.

My Fathers side are completely the opposite, all holding there hair to old age

I'm 23, have an abundance of hair no signs of balding in the slightest, my hairs colour, complexion, hair line and thickness all take after my father.

I hear that genetics for male pattern baldness all come from the mothers side on the x chromosome, my question is why am i not bald? surely the father must have an effect one way or another?
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