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The question is a bit too vague to answer in great detail. In humans, there are cases of polydactyly which are either autosomal dominant or autosomal recessive, depending on how the extra digit is placed. To the best of my knowledge, there are cases which are merely genetic mutations but, for the most part, it is in the genes!

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13y ago
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6mo ago

Polydactyly, the condition of having extra digits, can pass on from generation to generation due to genetic inheritance. It is usually inherited in an autosomal dominant manner, meaning that if one parent carries the gene for polydactyly, there is a 50% chance each child will inherit the condition. The specific genes and mechanisms involved in polydactyly inheritance can vary depending on the underlying genetic causes.

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Q: Why does poly dactyl tend to pass on from generation to generation?
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