||↓ Following this post of here ↓||
|| Something that impresses me a lot about the world of MHA is that no one has questioned how Izuku can be quirkless if both of his parents have a quirk (I mean, sure, no one asks Izuku about his father, but at least Mitsuki Bakugou should know something about that man, i mean, she IS inko's best friend, at least once she had to think this stuff through and be like: "Wait, something doesn't seem right here-") ||
|| I mean, the only quirkless characters from birth we've seen apart from Izuku are Aoyama and Melissa! ||
|| But for both there is an explanation for why they are quirkless! ||
|| With Aoyama we know that both of his parents are quirkless, sooo is clear why Aoyama is quirkless, since he inherited that from his parents. ||
|| With Melissa is a similar case, the only thing that differentiates her from Aoyama's case is that she has a father with a quirk, which increases the chances of her being born with one, but as I theorize, her mother on the other hand was most likely quirkless, which made Melissa that slim chance of inheriting that gene. ||
|| Because according to the mha logic, the quirkless gene is somewhat rare, which means the quirk gene is a dominant gene (as the post above says) ||
|| So, in the case of Izuku, who has TWO PARENTS WITH QUIRKS (Inko with "attracting small objects" and Hisashi with "breathing fire") it is rare that he ended up quirkless, of course his parents could be carriers of the quirkless gene, but as I said, the quirk gene is dominant, and Izuku being from the 5th generation only makes the chances of that quirkless gene affecting 5% or so if both parents have a quirk (I mean, please, at least for Aoyama and Melissa it's understandable, it has an explanation, but for Izuku?) ||
|| As I said, Inko and Hisashi could be carriers of the gene, but since we don't know anything about the grandparents of any of the children in class 1A, we won't have an answer about that. (↓ Here is an example of the biology of inheritance, so you can keep the focus and not get lost 10 times trying to understand this like I did- ↓) ||
|| As we can see, Izuku would be the "Affected Offspring" in this case, and as you can see, even if he got a quirk, he would still carry the quirkless gene, since it is also rare to be born like the "Unaffected Offspring" ||
|| But, if we go by the "Dad For One Theory" side, we have a man who was born in the first era of quirks, an era in which the dominant gene was the quirkless gene, see where I'm going? ||
|| All For One, being from the first generation, gives him more chances of inheriting the quirkless gene and if Inko is also a carrier of this gene even if it is recessive, thanks to Afo's genetics it will be inherited ||
|| well that was all (Sorry for not having made theories lately, it's just that we've already finished the manga and there's no more content.) byeee ||
✧ Credits to @ms-dead-inside for their amanzing post! ✧
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