[quote=@Host]
<Snipped quote by Threads of Fate>

Why is it so different?
[/quote]

Mm. Father's current body is based entirely on his soul, rather than any genetic makeup. Normally, a soul is in some part based on the body, but for him his body is entirely off of his soul and spirit. And even then it's slightly different than it would otherwise be due to how he formed it.