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Magic genes

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The magic gene is a portion of human DNA that determines whether a person will have magical abilities. Those people born with the gene active are witches and wizards, while those who are not are Muggles or Squibs.

The magic gene is recessive[1] (1), and any child born to a wizarding family will have some degree of magical ability, or at least magical awareness. Squibs, while unable to use magic, are still able to function within the wizarding world to a limited degree. The descendants of squibs who instead integrate into the Muggle world and marry will usually be Muggles, although the magic gene occasionally resurfaces in later generations and produces a Muggle-born witch or wizard[2].

Behind the scenes

  • J.K. Rowling stated that she had considered having Dudley Dursley have a magical child in the epilogue, and see them off to Hogwarts at Platform 9¾ at the same time as Harry and his family. She decided against this, however, stating that any latent wizarding genes would never survive contact with Uncle Vernon's DNA.[3]
  • According to J.K. Rowling, nobody knows where magic comes from.

Appearances

Notes and references

(1) http://www.tes.co.uk/teaching-resource/Harry-Potter-genetics-B1-revision-Year-10-6057261/


External links

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