A member asked:

Hows patau syndrome inherited?

A doctor has provided 1 answer

Not inherited: Patau syndrome, or trisomy 13, is not inherited, in that a baby does not "get it" from either parent. It is usually caused when the egg does not divide properly at the time of fertilization. This accident causes a baby to get an extra number 13 chromosome in every one of its cells. Trisomy 13 is rare, but a very serious condition. Most babies with it die before birth or shortly after birth.

Answered 2/2/2018

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