Come learn 2000+ kanji and 6000+ vocabulary words with WaniKani.
If 遺伝 is heredity and you pass your heredity to your child, how is it being passed? Via genes, of course.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
I’m wondering if they really want to get the paternity test done.