system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] It's been confirmed that Wizard ability is genetic. Could gene therapy be used allow a Squib (by stimulating recessive genes) or a Muggle (by inserting active Wizard genes) to use magic?
gpt
It's even easier than all that. Go to Saint Mungo's, get some hair from a lifer who can use magic, and make a polyjuice potion for your squib or muggle friend. The potion rewrites their DNA for the time of effect. Just make sure they always have a flask of it on hand.