Multiple choice

Polydactyly in man is due to

  1. autosomal dominant gene

  2. autosomal recessive gene

  3. sex-linked dominant gene

  4. sex-linked recessive gene
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A Correct answer
Explanation

Polydactyly means having more than five digits in hand or feet. It is an abnormal hereditary trait which occurs due to dominant defective autosomal genes. 

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