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How does a person inherit polydactyly?
autosomal dominant autosomal recessive sporadic
Questioner：Olivia Mitchell 2023-04-06 14:05:50
The most authoritative answer in 2024
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Zoe Gray——Studied at the University of Toronto, Lives in Toronto, Canada.
As a geneticist with a focus on inherited conditions, I can explain that polydactyly, also known as having extra fingers or toes, is a congenital condition that is often inherited. It is caused by a mutation in one or more genes that are responsible for the development of the limbs. The inheritance pattern can be autosomal dominant, which means that only one copy of the mutated gene from one parent is needed for a child to inherit the condition. However, it can also be autosomal recessive, where both parents must carry the mutated gene for a child to express the trait. In some cases, polydactyly can occur due to environmental factors or without a clear genetic cause, which is known as sporadic.
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Ethan Jackson——Works at the International Committee of the Red Cross, Lives in Geneva, Switzerland.
Polydactyly is an inherited condition in which a person has extra fingers or toes. It is caused by a dominant allele of a gene. This means it can be passed on by just one parent if they have the disorder. The genetic diagram shows how this can happen.read more >>+119962023-04-08 14:05:50
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