A member asked:

Why is progeria a dominant gene?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Progeria: The majority of cases are due to new genetic mutations. However, there are some inherited cases (rarer) due to mosaicism in a parent. This can occur when a parent who does not have progeria has a small percentage of cells that have that the genetic mutation. Can't say why it is a dominant gene- but it expresses itself. Children usually die by around 14.6 years old - bearing no offspring.

Answered 9/8/2020

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