Yeah, the language is a problem

[palominocorn]

"The Y chromosome is passed on from father to son" is biologically and socially wrong, but it's much easier than "the Y chromosome usually but not always makes a person develop a high-testostetone body with a penis and testicles, which often means they can impregnate someone and pass it on to half the resulting offspring, who will go through the same process" (still very simplified).