system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter/Aliens] We know there is a genetic component to magical ability so what might happen if a Facehugger was somehow able to implant a wizard?
gpt
There seems to be a mental component to magic aside from just having "the magic gene". 

All the creatures that developed some kind of magic (giants, goblins, house elves, wizards) are sentient, capable of rational thought. Other magical creatures don't seem to control their magic consciously, but rather instinctually. 

An alien with the magic gene would have neither sentience nor the instinct to use magic, so it's probable they would not express magic even if they had the gene. 

They would basically be squibs.