Surely he would know. After all he raped his mother, without breaking her virginity, into getting pregnant with himself to give birth to himself, which may be incest, but which presumably results in a child with two sets of chromosomes , although if he had two sets, then he would not be himself, but half Mary. While if he had only one set that would be parthenogenesis, which would not make a viable fetus, but would not be incest, but then it would not be parthenogenesis, because you usually have to be female to do that, and you get a female child never a male.

If he can't work it out, I am sure I can't. But then according to the O.T. he did not know how to selectively breed goats either, so maybe he did not understand it after all. Which is odd because he designed it. OH well, I give up.