Is polydactyly dominant or recessive?
Understand the Problem
The question is asking whether the genetic trait of polydactyly, which is the condition of having extra fingers or toes, is controlled by a dominant or recessive gene. This involves understanding genetic inheritance patterns.
Answer
Polydactyly is generally an autosomal dominant trait.
Polydactyly is generally an autosomal dominant trait, though it can also be inherited as a recessive trait in certain cases.
Answer for screen readers
Polydactyly is generally an autosomal dominant trait, though it can also be inherited as a recessive trait in certain cases.
More Information
Polydactyly, the condition of having extra fingers or toes, is typically inherited in an autosomal dominant pattern. This means that only one copy of the mutated gene, inherited from one parent, is necessary for the trait to be expressed. However, there are rarer instances where polydactyly can be inherited as a recessive trait.
Tips
Make sure to distinguish between syndromic and non-syndromic polydactyly, as inheritance patterns may differ.
Sources
- Polydactyly (Extra Digits): Types, Causes & Treatment - my.clevelandclinic.org
- Clinical Genetics of Polydactyly: An Updated Review - Frontiers - frontiersin.org
- A review of polydactyly and its inheritance: Connecting the dots - PMC - ncbi.nlm.nih.gov
