https://www.scientificamerican.com/article/3-human-chimeras-that-already-exist/
ref - https://www.reddit.com/r/todayilearned/comments/fntvy0/til_humans_can_have_2_sets_of_dna_from_absorbing/
origin - https://www.pipiscrew.com/?p=17643 humans-can-have-2-sets-of-dna-2016