(December 3, 2019 at 4:56 am)Haipule Wrote: Therefore, there can be no female with out a male and the male came first!
Yeah, because pushing a baby out through the end of your dick isn't going to tingle.
Quote:So Adam was first. Does this make sense?
No. Your Y chromosome is just a degenerate fragment of an X chromosome. It's an afterthought that codes for little beyond "Be Male."
Interestingly, birds use a completely different chromosome for sex determination. Their Z chromosome is analogous to our chromosome 9. Two Z chromosomes get you a rooster, while ZW gets you a hen. The opposite of the mammalian system.
So the rooster came first but Adam was second best.
In reality, the answer is the same for the chicken or egg question. Neither. Our distant ancestors were hermaphrodites and asexual before that, though you have to go back a long way to get that primitive.